V4L/DVB (3318b): sem2mutex: drivers/media/, #2

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/common/saa7146_core.c

···
 #include <media/saa7146.h>
 
 LIST_HEAD(saa7146_devices);
-DECLARE_MUTEX(saa7146_devices_lock);
+DEFINE_MUTEX(saa7146_devices_lock);
 
 static int saa7146_num;
 
···
 
 	pci_set_drvdata(pci, dev);
 
-	init_MUTEX(&dev->lock);
+	mutex_init(&dev->lock);
 	spin_lock_init(&dev->int_slock);
 	spin_lock_init(&dev->slock);
 
-	init_MUTEX(&dev->i2c_lock);
+	mutex_init(&dev->i2c_lock);
 
 	dev->module = THIS_MODULE;
 	init_waitqueue_head(&dev->i2c_wq);

drivers/media/common/saa7146_fops.c

···
 	}
 
 	/* is it free? */
-	down(&dev->lock);
+	mutex_lock(&dev->lock);
 	if (vv->resources & bit) {
 		DEB_D(("locked! vv->resources:0x%02x, we want:0x%02x\n",vv->resources,bit));
 		/* no, someone else uses it */
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 		return 0;
 	}
 	/* it's free, grab it */
 	fh->resources  |= bit;
 	vv->resources |= bit;
 	DEB_D(("res: get 0x%02x, cur:0x%02x\n",bit,vv->resources));
-	up(&dev->lock);
+	mutex_unlock(&dev->lock);
 	return 1;
 }
 
···
 	if ((fh->resources & bits) != bits)
 		BUG();
 
-	down(&dev->lock);
+	mutex_lock(&dev->lock);
 	fh->resources  &= ~bits;
 	vv->resources &= ~bits;
 	DEB_D(("res: put 0x%02x, cur:0x%02x\n",bits,vv->resources));
-	up(&dev->lock);
+	mutex_unlock(&dev->lock);
 }
 
 
···
 
 	DEB_EE(("inode:%p, file:%p, minor:%d\n",inode,file,minor));
 
-	if (down_interruptible(&saa7146_devices_lock))
+	if (mutex_lock_interruptible(&saa7146_devices_lock))
 		return -ERESTARTSYS;
 
 	list_for_each(list,&saa7146_devices) {
···
 		kfree(fh);
 		file->private_data = NULL;
 	}
-	up(&saa7146_devices_lock);
+	mutex_unlock(&saa7146_devices_lock);
 	return result;
 }
 
···
 
 	DEB_EE(("inode:%p, file:%p\n",inode,file));
 
-	if (down_interruptible(&saa7146_devices_lock))
+	if (mutex_lock_interruptible(&saa7146_devices_lock))
 		return -ERESTARTSYS;
 
 	if( fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
···
 	file->private_data = NULL;
 	kfree(fh);
 
-	up(&saa7146_devices_lock);
+	mutex_unlock(&saa7146_devices_lock);
 
 	return 0;
 }

drivers/media/common/saa7146_i2c.c

···
 	int address_err = 0;
 	int short_delay = 0;
 
-	if (down_interruptible (&dev->i2c_lock))
+	if (mutex_lock_interruptible(&dev->i2c_lock))
 		return -ERESTARTSYS;
 
 	for(i=0;i<num;i++) {
···
 		}
 	}
 
-	up(&dev->i2c_lock);
+	mutex_unlock(&dev->i2c_lock);
 	return err;
 }
 

drivers/media/common/saa7146_vbi.c

···
 			    V4L2_FIELD_SEQ_TB, // FIXME: does this really work?
 			    sizeof(struct saa7146_buf),
 			    file);
-	init_MUTEX(&fh->vbi_q.lock);
+	mutex_init(&fh->vbi_q.lock);
 
 	init_timer(&fh->vbi_read_timeout);
 	fh->vbi_read_timeout.function = vbi_read_timeout;

drivers/media/common/saa7146_video.c

···
 		err = try_win(dev,&f->fmt.win);
 		if (0 != err)
 			return err;
-		down(&dev->lock);
+		mutex_lock(&dev->lock);
 		fh->ov.win    = f->fmt.win;
 		fh->ov.nclips = f->fmt.win.clipcount;
 		if (fh->ov.nclips > 16)
 			fh->ov.nclips = 16;
 		if (copy_from_user(fh->ov.clips,f->fmt.win.clips,sizeof(struct v4l2_clip)*fh->ov.nclips)) {
-			up(&dev->lock);
+			mutex_unlock(&dev->lock);
 			return -EFAULT;
 		}
 
 		/* fh->ov.fh is used to indicate that we have valid overlay informations, too */
 		fh->ov.fh = fh;
 
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 
 		/* check if our current overlay is active */
 		if (IS_OVERLAY_ACTIVE(fh) != 0) {
···
 		return -EINVAL;
 	}
 
-	down(&dev->lock);
+	mutex_lock(&dev->lock);
 
 	switch (ctrl->type) {
 	case V4L2_CTRL_TYPE_BOOLEAN:
···
 		/* fixme: we can support changing VFLIP and HFLIP here... */
 		if (IS_CAPTURE_ACTIVE(fh) != 0) {
 			DEB_D(("V4L2_CID_HFLIP while active capture.\n"));
-			up(&dev->lock);
+			mutex_unlock(&dev->lock);
 			return -EINVAL;
 		}
 		vv->hflip = c->value;
···
 	case V4L2_CID_VFLIP:
 		if (IS_CAPTURE_ACTIVE(fh) != 0) {
 			DEB_D(("V4L2_CID_VFLIP while active capture.\n"));
-			up(&dev->lock);
+			mutex_unlock(&dev->lock);
 			return -EINVAL;
 		}
 		vv->vflip = c->value;
···
 		return -EINVAL;
 	}
 	}
-	up(&dev->lock);
+	mutex_unlock(&dev->lock);
 
 	if (IS_OVERLAY_ACTIVE(fh) != 0) {
 		saa7146_stop_preview(fh);
···
 			}
 		}
 
-		down(&dev->lock);
+		mutex_lock(&dev->lock);
 
 		/* ok, accept it */
 		vv->ov_fb = *fb;
···
 			vv->ov_fb.fmt.bytesperline =
 				vv->ov_fb.fmt.width*fmt->depth/8;
 
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 
 		return 0;
 	}
···
 			}
 		}
 
-		down(&dev->lock);
+		mutex_lock(&dev->lock);
 
 		for(i = 0; i < dev->ext_vv_data->num_stds; i++)
 			if (*id & dev->ext_vv_data->stds[i].id)
···
 			found = 1;
 		}
 
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 
 		if (vv->ov_suspend != NULL) {
 			saa7146_start_preview(vv->ov_suspend);
···
 		DEB_D(("VIDIOCGMBUF \n"));
 
 		q = &fh->video_q;
-		down(&q->lock);
+		mutex_lock(&q->lock);
 		err = videobuf_mmap_setup(q,gbuffers,gbufsize,
 					  V4L2_MEMORY_MMAP);
 		if (err < 0) {
-			up(&q->lock);
+			mutex_unlock(&q->lock);
 			return err;
 		}
 		memset(mbuf,0,sizeof(*mbuf));
···
 		mbuf->size   = gbuffers * gbufsize;
 		for (i = 0; i < gbuffers; i++)
 			mbuf->offsets[i] = i * gbufsize;
-		up(&q->lock);
+		mutex_unlock(&q->lock);
 		return 0;
 	}
 	default:
···
 			    sizeof(struct saa7146_buf),
 			    file);
 
-	init_MUTEX(&fh->video_q.lock);
+	mutex_init(&fh->video_q.lock);
 
 	return 0;
 }

drivers/media/dvb/b2c2/flexcop-common.h

···
 
 #include <linux/config.h>
 #include <linux/pci.h>
+#include <linux/mutex.h>
 
 #include "flexcop-reg.h"
 
···
 	int (*fe_sleep) (struct dvb_frontend *);
 
 	struct i2c_adapter i2c_adap;
-	struct semaphore i2c_sem;
-
+	struct mutex i2c_mutex;
 	struct module *owner;
 
 	/* options and status */

drivers/media/dvb/b2c2/flexcop-i2c.c

···
 	struct flexcop_device *fc = i2c_get_adapdata(i2c_adap);
 	int i, ret = 0;
 
-	if (down_interruptible(&fc->i2c_sem))
+	if (mutex_lock_interruptible(&fc->i2c_mutex))
 		return -ERESTARTSYS;
 
 	/* reading */
···
 	else
 		ret = num;
 
-	up(&fc->i2c_sem);
+	mutex_unlock(&fc->i2c_mutex);
 
 	return ret;
 }
···
 {
 	int ret;
 
-	sema_init(&fc->i2c_sem,1);
+	mutex_init(&fc->i2c_mutex);
 
 	memset(&fc->i2c_adap, 0, sizeof(struct i2c_adapter));
 	strncpy(fc->i2c_adap.name, "B2C2 FlexCop device",I2C_NAME_SIZE);

drivers/media/dvb/bt8xx/bt878.c

···
 	int retval;
 
 	retval = 0;
-	if (down_interruptible (&bt->gpio_lock))
+	if (mutex_lock_interruptible(&bt->gpio_lock))
 		return -ERESTARTSYS;
 	/* special gpio signal */
 	switch (cmd) {
···
 		retval = -EINVAL;
 		break;
 	}
-	up(&bt->gpio_lock);
+	mutex_unlock(&bt->gpio_lock);
 	return retval;
 }
 

drivers/media/dvb/bt8xx/bt878.h

···
 #include <linux/pci.h>
 #include <linux/sched.h>
 #include <linux/spinlock.h>
+#include <linux/mutex.h>
+
 #include "bt848.h"
 #include "bttv.h"
 
···
 extern int bt878_num;
 
 struct bt878 {
-	struct semaphore  gpio_lock;
+	struct mutex gpio_lock;
 	unsigned int nr;
 	unsigned int bttv_nr;
 	struct i2c_adapter *adapter;

drivers/media/dvb/bt8xx/dst.c

···
 
 static int dst_probe(struct dst_state *state)
 {
-	sema_init(&state->dst_mutex, 1);
+	mutex_init(&state->dst_mutex);
 	if ((rdc_8820_reset(state)) < 0) {
 		dprintk(verbose, DST_ERROR, 1, "RDC 8820 RESET Failed.");
 		return -1;
···
 {
 	u8 reply;
 
-	down(&state->dst_mutex);
+	mutex_lock(&state->dst_mutex);
 	if ((dst_comm_init(state)) < 0) {
 		dprintk(verbose, DST_NOTICE, 1, "DST Communication Initialization Failed.");
 		goto error;
···
 		dprintk(verbose, DST_INFO, 1, "checksum failure");
 		goto error;
 	}
-	up(&state->dst_mutex);
+	mutex_unlock(&state->dst_mutex);
 	return 0;
 
 error:
-	up(&state->dst_mutex);
+	mutex_unlock(&state->dst_mutex);
 	return -EIO;
 
 }
···
 			dst_set_voltage(fe, SEC_VOLTAGE_13);
 	}
 	state->diseq_flags &= ~(HAS_LOCK | ATTEMPT_TUNE);
-	down(&state->dst_mutex);
+	mutex_lock(&state->dst_mutex);
 	if ((dst_comm_init(state)) < 0) {
 		dprintk(verbose, DST_DEBUG, 1, "DST Communication initialization failed.");
 		goto error;
···
 	state->diseq_flags |= ATTEMPT_TUNE;
 	retval = dst_get_tuna(state);
 werr:
-	up(&state->dst_mutex);
+	mutex_unlock(&state->dst_mutex);
 	return retval;
 
 error:
-	up(&state->dst_mutex);
+	mutex_unlock(&state->dst_mutex);
 	return -EIO;
 }
 

drivers/media/dvb/bt8xx/dst_ca.c

···
 {
 	u8 reply;
 
-	down(&state->dst_mutex);
+	mutex_lock(&state->dst_mutex);
 	dst_comm_init(state);
 	msleep(65);
 
···
 			goto error;
 		}
 	}
-	up(&state->dst_mutex);
+	mutex_unlock(&state->dst_mutex);
 	return 0;
 
 error:
-	up(&state->dst_mutex);
+	mutex_unlock(&state->dst_mutex);
 	return -EIO;
 }
 

drivers/media/dvb/bt8xx/dst_common.h

···
 #include <linux/smp_lock.h>
 #include <linux/dvb/frontend.h>
 #include <linux/device.h>
+#include <linux/mutex.h>
 #include "bt878.h"
 
 #include "dst_ca.h"
···
 	u8 vendor[8];
 	u8 board_info[8];
 
-	struct semaphore dst_mutex;
+	struct mutex dst_mutex;
 };
 
 struct dst_types {

drivers/media/dvb/bt8xx/dvb-bt8xx.c

···
 	if (!dvbdmx->dmx.frontend)
 		return -EINVAL;
 
-	down(&card->lock);
+	mutex_lock(&card->lock);
 	card->nfeeds++;
 	rc = card->nfeeds;
 	if (card->nfeeds == 1)
 		bt878_start(card->bt, card->gpio_mode,
 			    card->op_sync_orin, card->irq_err_ignore);
-	up(&card->lock);
+	mutex_unlock(&card->lock);
 	return rc;
 }
 
···
 	if (!dvbdmx->dmx.frontend)
 		return -EINVAL;
 
-	down(&card->lock);
+	mutex_lock(&card->lock);
 	card->nfeeds--;
 	if (card->nfeeds == 0)
 		bt878_stop(card->bt);
-	up(&card->lock);
+	mutex_unlock(&card->lock);
 
 	return 0;
 }
···
 	if (!(card = kzalloc(sizeof(struct dvb_bt8xx_card), GFP_KERNEL)))
 		return -ENOMEM;
 
-	init_MUTEX(&card->lock);
+	mutex_init(&card->lock);
 	card->bttv_nr = sub->core->nr;
 	strncpy(card->card_name, sub->core->name, sizeof(sub->core->name));
 	card->i2c_adapter = &sub->core->i2c_adap;
···
 		return -EFAULT;
 	}
 
-	init_MUTEX(&card->bt->gpio_lock);
+	mutex_init(&card->bt->gpio_lock);
 	card->bt->bttv_nr = sub->core->nr;
 
 	if ( (ret = dvb_bt8xx_load_card(card, sub->core->type)) ) {

drivers/media/dvb/bt8xx/dvb-bt8xx.h

···
 #define DVB_BT8XX_H
 
 #include <linux/i2c.h>
+#include <linux/mutex.h>
 #include "dvbdev.h"
 #include "dvb_net.h"
 #include "bttv.h"
···
 #include "lgdt330x.h"
 
 struct dvb_bt8xx_card {
-	struct semaphore lock;
+	struct mutex lock;
 	int nfeeds;
 	char card_name[32];
 	struct dvb_adapter dvb_adapter;

drivers/media/dvb/cinergyT2/cinergyT2.c

···
 #include <linux/pci.h>
 #include <linux/input.h>
 #include <linux/dvb/frontend.h>
+#include <linux/mutex.h>
 
 #include "dmxdev.h"
 #include "dvb_demux.h"
···
 struct cinergyt2 {
 	struct dvb_demux demux;
 	struct usb_device *udev;
-	struct semaphore sem;
+	struct mutex sem;
 	struct dvb_adapter adapter;
 	struct dvb_device *fedev;
 	struct dmxdev dmxdev;
···
 	struct dvb_demux *demux = dvbdmxfeed->demux;
 	struct cinergyt2 *cinergyt2 = demux->priv;
 
-	if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
 		return -ERESTARTSYS;
 
 	if (cinergyt2->streaming == 0)
 		cinergyt2_start_stream_xfer(cinergyt2);
 
 	cinergyt2->streaming++;
-	up(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->sem);
 	return 0;
 }
 
···
 	struct dvb_demux *demux = dvbdmxfeed->demux;
 	struct cinergyt2 *cinergyt2 = demux->priv;
 
-	if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
 		return -ERESTARTSYS;
 
 	if (--cinergyt2->streaming == 0)
 		cinergyt2_stop_stream_xfer(cinergyt2);
 
-	up(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->sem);
 	return 0;
 }
 
···
 	struct cinergyt2 *cinergyt2 = dvbdev->priv;
 	int err = -ERESTARTSYS;
 
-	if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
 		return -ERESTARTSYS;
 
 	if ((err = dvb_generic_open(inode, file))) {
-		up(&cinergyt2->sem);
+		mutex_unlock(&cinergyt2->sem);
 		return err;
 	}
 
···
 
 	atomic_inc(&cinergyt2->inuse);
 
-	up(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->sem);
 	return 0;
 }
 
···
 	struct dvb_device *dvbdev = file->private_data;
 	struct cinergyt2 *cinergyt2 = dvbdev->priv;
 
-	if (down_interruptible(&cinergyt2->sem))
+	if (mutex_lock_interruptible(&cinergyt2->sem))
 		return -ERESTARTSYS;
 
 	if (!cinergyt2->disconnect_pending && (file->f_flags & O_ACCMODE) != O_RDONLY) {
···
 		cinergyt2_sleep(cinergyt2, 1);
 	}
 
-	up(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->sem);
 
 	if (atomic_dec_and_test(&cinergyt2->inuse) && cinergyt2->disconnect_pending) {
 		warn("delayed unregister in release");
···
 	struct dvb_device *dvbdev = file->private_data;
 	struct cinergyt2 *cinergyt2 = dvbdev->priv;
 
-	if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
 		return -ERESTARTSYS;
 
 	poll_wait(file, &cinergyt2->poll_wq, wait);
 
-	up(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->sem);
 
 	return (POLLIN | POLLRDNORM | POLLPRI);
 }
···
 		if (copy_from_user(&p, (void  __user*) arg, sizeof(p)))
 			return -EFAULT;
 
-		if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
+		if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
 			return -ERESTARTSYS;
 
 		param->cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
···
 					(char *) param, sizeof(*param),
 					NULL, 0);
 
-		up(&cinergyt2->sem);
+		mutex_unlock(&cinergyt2->sem);
 
 		return (err < 0) ? err : 0;
 	}
···
 	struct cinergyt2_rc_event rc_events[12];
 	int n, len, i;
 
-	if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
 		return;
 
 	len = cinergyt2_command(cinergyt2, buf, sizeof(buf),
···
 	schedule_delayed_work(&cinergyt2->rc_query_work,
 			      msecs_to_jiffies(RC_QUERY_INTERVAL));
 
-	up(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->sem);
 }
 
 static int cinergyt2_register_rc(struct cinergyt2 *cinergyt2)
···
 	uint8_t lock_bits;
 	uint32_t unc;
 
-	if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
 		return;
 
 	unc = s->uncorrected_block_count;
···
 	schedule_delayed_work(&cinergyt2->query_work,
 			      msecs_to_jiffies(QUERY_INTERVAL));
 
-	up(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->sem);
 }
 
 static int cinergyt2_probe (struct usb_interface *intf,
···
 	memset (cinergyt2, 0, sizeof (struct cinergyt2));
 	usb_set_intfdata (intf, (void *) cinergyt2);
 
-	init_MUTEX(&cinergyt2->sem);
+	mutex_init(&cinergyt2->sem);
 	init_waitqueue_head (&cinergyt2->poll_wq);
 	INIT_WORK(&cinergyt2->query_work, cinergyt2_query, cinergyt2);
 
···
 {
 	struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
 
-	if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
 		return -ERESTARTSYS;
 
 	if (state.event > PM_EVENT_ON) {
···
 		cinergyt2_sleep(cinergyt2, 1);
 	}
 
-	up(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->sem);
 	return 0;
 }
 
···
 	struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
 	struct dvbt_set_parameters_msg *param = &cinergyt2->param;
 
-	if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
 		return -ERESTARTSYS;
 
 	if (!cinergyt2->sleeping) {
···
 
 	cinergyt2_resume_rc(cinergyt2);
 
-	up(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->sem);
 	return 0;
 }
 

drivers/media/dvb/dvb-core/dmxdev.c

···
 
 	dprintk ("function : %s\n", __FUNCTION__);
 
-	if (down_interruptible (&dmxdev->mutex))
+	if (mutex_lock_interruptible(&dmxdev->mutex))
 		return -ERESTARTSYS;
 
 	if ((file->f_flags&O_ACCMODE)==O_RDWR) {
 		if (!(dmxdev->capabilities&DMXDEV_CAP_DUPLEX)) {
-			up(&dmxdev->mutex);
+			mutex_unlock(&dmxdev->mutex);
 			return -EOPNOTSUPP;
 		}
 	}
···
 	      dmxdev->dvr_buffer.size=DVR_BUFFER_SIZE;
 	      dmxdev->dvr_buffer.data=vmalloc(DVR_BUFFER_SIZE);
 	      if (!dmxdev->dvr_buffer.data) {
-		      up(&dmxdev->mutex);
+		      mutex_unlock(&dmxdev->mutex);
 		      return -ENOMEM;
 	      }
 	}
···
 		dmxdev->dvr_orig_fe=dmxdev->demux->frontend;
 
 		if (!dmxdev->demux->write) {
-			up(&dmxdev->mutex);
+			mutex_unlock(&dmxdev->mutex);
 			return -EOPNOTSUPP;
 		}
 
 		front=get_fe(dmxdev->demux, DMX_MEMORY_FE);
 
 		if (!front) {
-			up(&dmxdev->mutex);
+			mutex_unlock(&dmxdev->mutex);
 			return -EINVAL;
 		}
 		dmxdev->demux->disconnect_frontend(dmxdev->demux);
 		dmxdev->demux->connect_frontend(dmxdev->demux, front);
 	}
-	up(&dmxdev->mutex);
+	mutex_unlock(&dmxdev->mutex);
 	return 0;
 }
 
···
 	struct dvb_device *dvbdev = file->private_data;
 	struct dmxdev *dmxdev = dvbdev->priv;
 
-	if (down_interruptible (&dmxdev->mutex))
+	if (mutex_lock_interruptible(&dmxdev->mutex))
 		return -ERESTARTSYS;
 
 	if ((file->f_flags&O_ACCMODE)==O_WRONLY) {
···
 			vfree(mem);
 		}
 	}
-	up(&dmxdev->mutex);
+	mutex_unlock(&dmxdev->mutex);
 	return 0;
 }
 
···
 		return -EOPNOTSUPP;
 	if ((file->f_flags&O_ACCMODE)!=O_WRONLY)
 		return -EINVAL;
-	if (down_interruptible (&dmxdev->mutex))
+	if (mutex_lock_interruptible(&dmxdev->mutex))
 		return -ERESTARTSYS;
 	ret=dmxdev->demux->write(dmxdev->demux, buf, count);
-	up(&dmxdev->mutex);
+	mutex_unlock(&dmxdev->mutex);
 	return ret;
 }
 
···
 	struct dmxdev *dmxdev = dvbdev->priv;
 	int ret;
 
-	//down(&dmxdev->mutex);
+	//mutex_lock(&dmxdev->mutex);
 	ret= dvb_dmxdev_buffer_read(&dmxdev->dvr_buffer,
 			      file->f_flags&O_NONBLOCK,
 			      buf, count, ppos);
-	//up(&dmxdev->mutex);
+	//mutex_unlock(&dmxdev->mutex);
 	return ret;
 }
 
···
 	if (!dmxdev->filter)
 		return -EINVAL;
 
-	if (down_interruptible(&dmxdev->mutex))
+	if (mutex_lock_interruptible(&dmxdev->mutex))
 		return -ERESTARTSYS;
 
 	for (i=0; i<dmxdev->filternum; i++)
···
 			break;
 
 	if (i==dmxdev->filternum) {
-		up(&dmxdev->mutex);
+		mutex_unlock(&dmxdev->mutex);
 		return -EMFILE;
 	}
 
 	dmxdevfilter=&dmxdev->filter[i];
-	sema_init(&dmxdevfilter->mutex, 1);
+	mutex_init(&dmxdevfilter->mutex);
 	dmxdevfilter->dvbdev=dmxdev->dvbdev;
 	file->private_data=dmxdevfilter;
 
···
 	dmxdevfilter->feed.ts=NULL;
 	init_timer(&dmxdevfilter->timer);
 
-	up(&dmxdev->mutex);
+	mutex_unlock(&dmxdev->mutex);
 	return 0;
 }
 
 
 static int dvb_dmxdev_filter_free(struct dmxdev *dmxdev, struct dmxdev_filter *dmxdevfilter)
 {
-	if (down_interruptible(&dmxdev->mutex))
+	if (mutex_lock_interruptible(&dmxdev->mutex))
 		return -ERESTARTSYS;
 
-	if (down_interruptible(&dmxdevfilter->mutex)) {
-		up(&dmxdev->mutex);
+	if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
+		mutex_unlock(&dmxdev->mutex);
 		return -ERESTARTSYS;
 	}
 
···
 
 	dvb_dmxdev_filter_state_set(dmxdevfilter, DMXDEV_STATE_FREE);
 	wake_up(&dmxdevfilter->buffer.queue);
-	up(&dmxdevfilter->mutex);
-	up(&dmxdev->mutex);
+	mutex_unlock(&dmxdevfilter->mutex);
+	mutex_unlock(&dmxdev->mutex);
 	return 0;
 }
 
···
 	struct dmxdev_filter *dmxdevfilter= file->private_data;
 	int ret=0;
 
-	if (down_interruptible(&dmxdevfilter->mutex))
+	if (mutex_lock_interruptible(&dmxdevfilter->mutex))
 		return -ERESTARTSYS;
 
 	if (dmxdevfilter->type==DMXDEV_TYPE_SEC)
···
 				     file->f_flags&O_NONBLOCK,
 				     buf, count, ppos);
 
-	up(&dmxdevfilter->mutex);
+	mutex_unlock(&dmxdevfilter->mutex);
 	return ret;
 }
 
···
 	unsigned long arg=(unsigned long) parg;
 	int ret=0;
 
-	if (down_interruptible (&dmxdev->mutex))
+	if (mutex_lock_interruptible(&dmxdev->mutex))
 		return -ERESTARTSYS;
 
 	switch (cmd) {
 	case DMX_START:
-		if (down_interruptible(&dmxdevfilter->mutex)) {
-			up(&dmxdev->mutex);
+		if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
+			mutex_unlock(&dmxdev->mutex);
 			return -ERESTARTSYS;
 		}
 		if (dmxdevfilter->state<DMXDEV_STATE_SET)
 			ret = -EINVAL;
 		else
 			ret = dvb_dmxdev_filter_start(dmxdevfilter);
-		up(&dmxdevfilter->mutex);
+		mutex_unlock(&dmxdevfilter->mutex);
 		break;
 
 	case DMX_STOP:
-		if (down_interruptible(&dmxdevfilter->mutex)) {
-			up(&dmxdev->mutex);
+		if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
+			mutex_unlock(&dmxdev->mutex);
 			return -ERESTARTSYS;
 		}
 		ret=dvb_dmxdev_filter_stop(dmxdevfilter);
-		up(&dmxdevfilter->mutex);
+		mutex_unlock(&dmxdevfilter->mutex);
 		break;
 
 	case DMX_SET_FILTER:
-		if (down_interruptible(&dmxdevfilter->mutex)) {
-			up(&dmxdev->mutex);
+		if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
+			mutex_unlock(&dmxdev->mutex);
 			return -ERESTARTSYS;
 		}
 		ret = dvb_dmxdev_filter_set(dmxdev, dmxdevfilter,
 				    (struct dmx_sct_filter_params *)parg);
-		up(&dmxdevfilter->mutex);
+		mutex_unlock(&dmxdevfilter->mutex);
 		break;
 
 	case DMX_SET_PES_FILTER:
-		if (down_interruptible(&dmxdevfilter->mutex)) {
-			up(&dmxdev->mutex);
+		if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
+			mutex_unlock(&dmxdev->mutex);
 			return -ERESTARTSYS;
 		}
 		ret=dvb_dmxdev_pes_filter_set(dmxdev, dmxdevfilter,
 					       (struct dmx_pes_filter_params *)parg);
-		up(&dmxdevfilter->mutex);
+		mutex_unlock(&dmxdevfilter->mutex);
 		break;
 
 	case DMX_SET_BUFFER_SIZE:
-		if (down_interruptible(&dmxdevfilter->mutex)) {
-			up(&dmxdev->mutex);
+		if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
+			mutex_unlock(&dmxdev->mutex);
 			return -ERESTARTSYS;
 		}
 		ret=dvb_dmxdev_set_buffer_size(dmxdevfilter, arg);
-		up(&dmxdevfilter->mutex);
+		mutex_unlock(&dmxdevfilter->mutex);
 		break;
 
 	case DMX_GET_EVENT:
···
 	default:
 		ret=-EINVAL;
 	}
-	up(&dmxdev->mutex);
+	mutex_unlock(&dmxdev->mutex);
 	return ret;
 }
 
···
 
 	int ret=0;
 
-	if (down_interruptible (&dmxdev->mutex))
+	if (mutex_lock_interruptible(&dmxdev->mutex))
 		return -ERESTARTSYS;
 
 	switch (cmd) {
···
 	default:
 		ret=-EINVAL;
 	}
-	up(&dmxdev->mutex);
+	mutex_unlock(&dmxdev->mutex);
 	return ret;
 }
 
···
 		return -ENOMEM;
 	}
 
-	sema_init(&dmxdev->mutex, 1);
+	mutex_init(&dmxdev->mutex);
 	spin_lock_init(&dmxdev->lock);
 	for (i=0; i<dmxdev->filternum; i++) {
 		dmxdev->filter[i].dev=dmxdev;

drivers/media/dvb/dvb-core/dmxdev.h

···
 #include <linux/wait.h>
 #include <linux/fs.h>
 #include <linux/string.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
 #include <linux/dvb/dmx.h>
 
···
 	struct dmxdev *dev;
 	struct dmxdev_buffer buffer;
 
-	struct semaphore mutex;
+	struct mutex mutex;
 
 	/* only for sections */
 	struct timer_list timer;
···
 	struct dmxdev_buffer dvr_buffer;
 #define DVR_BUFFER_SIZE (10*188*1024)
 
-	struct semaphore mutex;
+	struct mutex mutex;
 	spinlock_t lock;
 };
 

drivers/media/dvb/dvb-core/dvb_demux.c

···
 	if (pid > DMX_MAX_PID)
 		return -EINVAL;
 
-	if (down_interruptible(&demux->mutex))
+	if (mutex_lock_interruptible(&demux->mutex))
 		return -ERESTARTSYS;
 
 	if (ts_type & TS_DECODER) {
 		if (pes_type >= DMX_TS_PES_OTHER) {
-			up(&demux->mutex);
+			mutex_unlock(&demux->mutex);
 			return -EINVAL;
 		}
 
 		if (demux->pesfilter[pes_type] &&
 		    demux->pesfilter[pes_type] != feed) {
-			up(&demux->mutex);
+			mutex_unlock(&demux->mutex);
 			return -EINVAL;
 		}
 
···
 #else
 		feed->buffer = vmalloc(feed->buffer_size);
 		if (!feed->buffer) {
-			up(&demux->mutex);
+			mutex_unlock(&demux->mutex);
 			return -ENOMEM;
 		}
 #endif
 	}
 
 	feed->state = DMX_STATE_READY;
-	up(&demux->mutex);
+	mutex_unlock(&demux->mutex);
 
 	return 0;
 }
···
 	struct dvb_demux *demux = feed->demux;
 	int ret;
 
-	if (down_interruptible(&demux->mutex))
+	if (mutex_lock_interruptible(&demux->mutex))
 		return -ERESTARTSYS;
 
 	if (feed->state != DMX_STATE_READY || feed->type != DMX_TYPE_TS) {
-		up(&demux->mutex);
+		mutex_unlock(&demux->mutex);
 		return -EINVAL;
 	}
 
 	if (!demux->start_feed) {
-		up(&demux->mutex);
+		mutex_unlock(&demux->mutex);
 		return -ENODEV;
 	}
 
 	if ((ret = demux->start_feed(feed)) < 0) {
-		up(&demux->mutex);
+		mutex_unlock(&demux->mutex);
 		return ret;
 	}
 
···
 	ts_feed->is_filtering = 1;
 	feed->state = DMX_STATE_GO;
 	spin_unlock_irq(&demux->lock);
-	up(&demux->mutex);
+	mutex_unlock(&demux->mutex);
 
 	return 0;
 }
···
 	struct dvb_demux *demux = feed->demux;
 	int ret;
 
-	if (down_interruptible(&demux->mutex))
+	if (mutex_lock_interruptible(&demux->mutex))
 		return -ERESTARTSYS;
 
 	if (feed->state < DMX_STATE_GO) {
-		up(&demux->mutex);
+		mutex_unlock(&demux->mutex);
 		return -EINVAL;
 	}
 
 	if (!demux->stop_feed) {
-		up(&demux->mutex);
+		mutex_unlock(&demux->mutex);
 		return -ENODEV;
 	}
 
···
 	ts_feed->is_filtering = 0;
 	feed->state = DMX_STATE_ALLOCATED;
 	spin_unlock_irq(&demux->lock);
-	up(&demux->mutex);
+	mutex_unlock(&demux->mutex);
 
 	return ret;
 }
···
 	struct dvb_demux *demux = (struct dvb_demux *)dmx;
 	struct dvb_demux_feed *feed;
 
-	if (down_interruptible(&demux->mutex))
+	if (mutex_lock_interruptible(&demux->mutex))
 		return -ERESTARTSYS;
 
 	if (!(feed = dvb_dmx_feed_alloc(demux))) {
-		up(&demux->mutex);
+		mutex_unlock(&demux->mutex);
 		return -EBUSY;
 	}
 
···
 
 	if (!(feed->filter = dvb_dmx_filter_alloc(demux))) {
 		feed->state = DMX_STATE_FREE;
-		up(&demux->mutex);
+		mutex_unlock(&demux->mutex);
 		return -EBUSY;
 	}
 
···
 	feed->filter->feed = feed;
 	feed->filter->state = DMX_STATE_READY;
 
-	up(&demux->mutex);
+	mutex_unlock(&demux->mutex);
 
 	return 0;
 }
···
 	struct dvb_demux *demux = (struct dvb_demux *)dmx;
 	struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
 
-	if (down_interruptible(&demux->mutex))
+	if (mutex_lock_interruptible(&demux->mutex))
 		return -ERESTARTSYS;
 
 	if (feed->state == DMX_STATE_FREE) {
-		up(&demux->mutex);
+		mutex_unlock(&demux->mutex);
 		return -EINVAL;
 	}
 #ifndef NOBUFS
···
 	if (feed->ts_type & TS_DECODER && feed->pes_type < DMX_TS_PES_OTHER)
 		demux->pesfilter[feed->pes_type] = NULL;
 
-	up(&demux->mutex);
+	mutex_unlock(&demux->mutex);
 	return 0;
 }
 
···
 	struct dvb_demux *dvbdemux = dvbdmxfeed->demux;
 	struct dvb_demux_filter *dvbdmxfilter;
 
-	if (down_interruptible(&dvbdemux->mutex))
+	if (mutex_lock_interruptible(&dvbdemux->mutex))
 		return -ERESTARTSYS;
 
 	dvbdmxfilter = dvb_dmx_filter_alloc(dvbdemux);
 	if (!dvbdmxfilter) {
-		up(&dvbdemux->mutex);
+		mutex_unlock(&dvbdemux->mutex);
 		return -EBUSY;
 	}
 
···
 	dvbdmxfeed->filter = dvbdmxfilter;
 	spin_unlock_irq(&dvbdemux->lock);
 
-	up(&dvbdemux->mutex);
+	mutex_unlock(&dvbdemux->mutex);
 	return 0;
 }
 
···
 	if (pid > 0x1fff)
 		return -EINVAL;
 
-	if (down_interruptible(&dvbdmx->mutex))
+	if (mutex_lock_interruptible(&dvbdmx->mutex))
 		return -ERESTARTSYS;
 
 	dvb_demux_feed_add(dvbdmxfeed);
···
 #else
 	dvbdmxfeed->buffer = vmalloc(dvbdmxfeed->buffer_size);
 	if (!dvbdmxfeed->buffer) {
-		up(&dvbdmx->mutex);
+		mutex_unlock(&dvbdmx->mutex);
 		return -ENOMEM;
 	}
 #endif
 
 	dvbdmxfeed->state = DMX_STATE_READY;
-	up(&dvbdmx->mutex);
+	mutex_unlock(&dvbdmx->mutex);
 	return 0;
 }
 
···
 	struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
 	int ret;
 
-	if (down_interruptible(&dvbdmx->mutex))
+	if (mutex_lock_interruptible(&dvbdmx->mutex))
 		return -ERESTARTSYS;
 
 	if (feed->is_filtering) {
-		up(&dvbdmx->mutex);
+		mutex_unlock(&dvbdmx->mutex);
 		return -EBUSY;
 	}
 
 	if (!dvbdmxfeed->filter) {
-		up(&dvbdmx->mutex);
+		mutex_unlock(&dvbdmx->mutex);
 		return -EINVAL;
 	}
 
···
 	dvbdmxfeed->feed.sec.seclen = 0;
 
 	if (!dvbdmx->start_feed) {
-		up(&dvbdmx->mutex);
+		mutex_unlock(&dvbdmx->mutex);
 		return -ENODEV;
 	}
 
 	prepare_secfilters(dvbdmxfeed);
 
 	if ((ret = dvbdmx->start_feed(dvbdmxfeed)) < 0) {
-		up(&dvbdmx->mutex);
+		mutex_unlock(&dvbdmx->mutex);
 		return ret;
 	}
 
···
 	dvbdmxfeed->state = DMX_STATE_GO;
 	spin_unlock_irq(&dvbdmx->lock);
 
-	up(&dvbdmx->mutex);
+	mutex_unlock(&dvbdmx->mutex);
 	return 0;
 }
 
···
 	struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
 	int ret;
 
-	if (down_interruptible(&dvbdmx->mutex))
+	if (mutex_lock_interruptible(&dvbdmx->mutex))
 		return -ERESTARTSYS;
 
 	if (!dvbdmx->stop_feed) {
-		up(&dvbdmx->mutex);
+		mutex_unlock(&dvbdmx->mutex);
 		return -ENODEV;
 	}
 
···
 	feed->is_filtering = 0;
 	spin_unlock_irq(&dvbdmx->lock);
 
-	up(&dvbdmx->mutex);
+	mutex_unlock(&dvbdmx->mutex);
 	return ret;
 }
 
···
 	struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
 	struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
 
-	if (down_interruptible(&dvbdmx->mutex))
+	if (mutex_lock_interruptible(&dvbdmx->mutex))
 		return -ERESTARTSYS;
 
 	if (dvbdmxfilter->feed != dvbdmxfeed) {
-		up(&dvbdmx->mutex);
+		mutex_unlock(&dvbdmx->mutex);
 		return -EINVAL;
 	}
 
···
 
 	dvbdmxfilter->state = DMX_STATE_FREE;
 	spin_unlock_irq(&dvbdmx->lock);
-	up(&dvbdmx->mutex);
+	mutex_unlock(&dvbdmx->mutex);
 	return 0;
 }
 
···
 	struct dvb_demux *dvbdmx = (struct dvb_demux *)demux;
 	struct dvb_demux_feed *dvbdmxfeed;
 
-	if (down_interruptible(&dvbdmx->mutex))
+	if (mutex_lock_interruptible(&dvbdmx->mutex))
 		return -ERESTARTSYS;
 
 	if (!(dvbdmxfeed = dvb_dmx_feed_alloc(dvbdmx))) {
-		up(&dvbdmx->mutex);
+		mutex_unlock(&dvbdmx->mutex);
 		return -EBUSY;
 	}
 
···
 	(*feed)->stop_filtering = dmx_section_feed_stop_filtering;
 	(*feed)->release_filter = dmx_section_feed_release_filter;
 
-	up(&dvbdmx->mutex);
+	mutex_unlock(&dvbdmx->mutex);
 	return 0;
 }
 
···
 	struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
 	struct dvb_demux *dvbdmx = (struct dvb_demux *)demux;
 
-	if (down_interruptible(&dvbdmx->mutex))
+	if (mutex_lock_interruptible(&dvbdmx->mutex))
 		return -ERESTARTSYS;
 
 	if (dvbdmxfeed->state == DMX_STATE_FREE) {
-		up(&dvbdmx->mutex);
+		mutex_unlock(&dvbdmx->mutex);
 		return -EINVAL;
 	}
 #ifndef NOBUFS
···
 
 	dvbdmxfeed->pid = 0xffff;
 
-	up(&dvbdmx->mutex);
+	mutex_unlock(&dvbdmx->mutex);
 	return 0;
 }
 
···
 	if ((!demux->frontend) || (demux->frontend->source != DMX_MEMORY_FE))
 		return -EINVAL;
 
-	if (down_interruptible(&dvbdemux->mutex))
+	if (mutex_lock_interruptible(&dvbdemux->mutex))
 		return -ERESTARTSYS;
 	dvb_dmx_swfilter(dvbdemux, buf, count);
-	up(&dvbdemux->mutex);
+	mutex_unlock(&dvbdemux->mutex);
 
 	if (signal_pending(current))
 		return -EINTR;
···
 	if (demux->frontend)
 		return -EINVAL;
 
-	if (down_interruptible(&dvbdemux->mutex))
+	if (mutex_lock_interruptible(&dvbdemux->mutex))
 		return -ERESTARTSYS;
 
 	demux->frontend = frontend;
-	up(&dvbdemux->mutex);
+	mutex_unlock(&dvbdemux->mutex);
 	return 0;
 }
 
···
 {
 	struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
 
-	if (down_interruptible(&dvbdemux->mutex))
+	if (mutex_lock_interruptible(&dvbdemux->mutex))
 		return -ERESTARTSYS;
 
 	demux->frontend = NULL;
-	up(&dvbdemux->mutex);
+	mutex_unlock(&dvbdemux->mutex);
 	return 0;
 }
 
···
 	dmx->disconnect_frontend = dvbdmx_disconnect_frontend;
 	dmx->get_pes_pids = dvbdmx_get_pes_pids;
 
-	sema_init(&dvbdemux->mutex, 1);
+	mutex_init(&dvbdemux->mutex);
 	spin_lock_init(&dvbdemux->lock);
 
 	return 0;

drivers/media/dvb/dvb-core/dvb_demux.h

···
 #include <linux/time.h>
 #include <linux/timer.h>
 #include <linux/spinlock.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
 #include "demux.h"
 
···
 	u8 tsbuf[204];
 	int tsbufp;
 
-	struct semaphore mutex;
+	struct mutex mutex;
 	spinlock_t lock;
 };
 

drivers/media/dvb/dvb-core/dvb_frontend.c

···
 #include <linux/suspend.h>
 #include <linux/jiffies.h>
 #include <asm/processor.h>
-#include <asm/semaphore.h>
 
 #include "dvb_frontend.h"
 #include "dvbdev.h"
···
  * FESTATE_LOSTLOCK. When the lock has been lost, and we're searching it again.
  */
 
-static DECLARE_MUTEX(frontend_mutex);
+static DEFINE_MUTEX(frontend_mutex);
 
 struct dvb_frontend_private {
 
···
 
 	dprintk ("%s\n", __FUNCTION__);
 
-	if (down_interruptible (&frontend_mutex))
+	if (mutex_lock_interruptible(&frontend_mutex))
 		return -ERESTARTSYS;
 
 	fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL);
 	if (fe->frontend_priv == NULL) {
-		up(&frontend_mutex);
+		mutex_unlock(&frontend_mutex);
 		return -ENOMEM;
 	}
 	fepriv = fe->frontend_priv;
···
 	dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template,
 			     fe, DVB_DEVICE_FRONTEND);
 
-	up (&frontend_mutex);
+	mutex_unlock(&frontend_mutex);
 	return 0;
 }
 EXPORT_SYMBOL(dvb_register_frontend);
···
 	struct dvb_frontend_private *fepriv = fe->frontend_priv;
 	dprintk ("%s\n", __FUNCTION__);
 
-	down (&frontend_mutex);
+	mutex_lock(&frontend_mutex);
 	dvb_unregister_device (fepriv->dvbdev);
 	dvb_frontend_stop (fe);
 	if (fe->ops->release)
···
 		printk("dvb_frontend: Demodulator (%s) does not have a release callback!\n", fe->ops->info.name);
 	/* fe is invalid now */
 	kfree(fepriv);
-	up (&frontend_mutex);
+	mutex_unlock(&frontend_mutex);
 	return 0;
 }
 EXPORT_SYMBOL(dvb_unregister_frontend);

drivers/media/dvb/dvb-core/dvb_net.c

···
 #include <linux/uio.h>
 #include <asm/uaccess.h>
 #include <linux/crc32.h>
+#include <linux/mutex.h>
 
 #include "dvb_demux.h"
 #include "dvb_net.h"
···
 	unsigned char ule_bridged;		/* Whether the ULE_BRIDGED extension header was found. */
 	int ule_sndu_remain;			/* Nr. of bytes still required for current ULE SNDU. */
 	unsigned long ts_count;			/* Current ts cell counter. */
-
-	struct semaphore mutex;
+	struct mutex mutex;
 };
 
 
···
 	unsigned char *mac = (unsigned char *) dev->dev_addr;
 
 	dprintk("%s: rx_mode %i\n", __FUNCTION__, priv->rx_mode);
-	down(&priv->mutex);
+	mutex_lock(&priv->mutex);
 	if (priv->tsfeed || priv->secfeed || priv->secfilter || priv->multi_secfilter[0])
 		printk("%s: BUG %d\n", __FUNCTION__, __LINE__);
 
···
 		ret = -EINVAL;
 
 error:
-	up(&priv->mutex);
+	mutex_unlock(&priv->mutex);
 	return ret;
 }
 
···
 	int i, ret = 0;
 
 	dprintk("%s\n", __FUNCTION__);
-	down(&priv->mutex);
+	mutex_lock(&priv->mutex);
 	if (priv->feedtype == DVB_NET_FEEDTYPE_MPE) {
 		if (priv->secfeed) {
 			if (priv->secfeed->is_filtering) {
···
 			printk("%s: no ts feed to stop\n", dev->name);
 	} else
 		ret = -EINVAL;
-	up(&priv->mutex);
+	mutex_unlock(&priv->mutex);
 	return ret;
 }
 
···
 
 	INIT_WORK(&priv->set_multicast_list_wq, wq_set_multicast_list, net);
 	INIT_WORK(&priv->restart_net_feed_wq, wq_restart_net_feed, net);
-	init_MUTEX(&priv->mutex);
+	mutex_init(&priv->mutex);
 
 	net->base_addr = pid;
 

drivers/media/dvb/dvb-usb/cxusb.c

···
 	struct dvb_usb_device *d = i2c_get_adapdata(adap);
 	int i;
 
-	if (down_interruptible(&d->i2c_sem) < 0)
+	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 		return -EAGAIN;
 
 	if (num > 2)
···
 		}
 	}
 
-	up(&d->i2c_sem);
+	mutex_unlock(&d->i2c_mutex);
 	return i;
 }
 

drivers/media/dvb/dvb-usb/dibusb-common.c

···
 	struct dvb_usb_device *d = i2c_get_adapdata(adap);
 	int i;
 
-	if (down_interruptible(&d->i2c_sem) < 0)
+	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 		return -EAGAIN;
 
 	if (num > 2)
···
 				break;
 	}
 
-	up(&d->i2c_sem);
+	mutex_unlock(&d->i2c_mutex);
 	return i;
 }
 

drivers/media/dvb/dvb-usb/digitv.c

···
 	struct dvb_usb_device *d = i2c_get_adapdata(adap);
 	int i;
 
-	if (down_interruptible(&d->i2c_sem) < 0)
+	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 		return -EAGAIN;
 
 	if (num > 2)
···
 				break;
 	}
 
-	up(&d->i2c_sem);
+	mutex_unlock(&d->i2c_mutex);
 	return i;
 }
 

drivers/media/dvb/dvb-usb/dvb-usb-init.c

···
 {
 	int ret = 0;
 
-	sema_init(&d->usb_sem, 1);
-	sema_init(&d->i2c_sem, 1);
+	mutex_init(&d->usb_mutex);
+	mutex_init(&d->i2c_mutex);
 
 	d->state = DVB_USB_STATE_INIT;
 

drivers/media/dvb/dvb-usb/dvb-usb-urb.c

···
 	if (wbuf == NULL || wlen == 0)
 		return -EINVAL;
 
-	if ((ret = down_interruptible(&d->usb_sem)))
+	if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
 		return ret;
 
 	deb_xfer(">>> ");
···
 		}
 	}
 
-	up(&d->usb_sem);
+	mutex_unlock(&d->usb_mutex);
 	return ret;
 }
 EXPORT_SYMBOL(dvb_usb_generic_rw);

drivers/media/dvb/dvb-usb/dvb-usb.h

···
 #include <linux/input.h>
 #include <linux/usb.h>
 #include <linux/firmware.h>
+#include <linux/mutex.h>
 
 #include "dvb_frontend.h"
 #include "dvb_demux.h"
···
  * @feedcount: number of reqested feeds (used for streaming-activation)
  * @pid_filtering: is hardware pid_filtering used or not.
  *
- * @usb_sem: semaphore of USB control messages (reading needs two messages)
- * @i2c_sem: semaphore for i2c-transfers
+ * @usb_mutex: semaphore of USB control messages (reading needs two messages)
+ * @i2c_mutex: semaphore for i2c-transfers
  *
  * @i2c_adap: device's i2c_adapter if it uses I2CoverUSB
  * @pll_addr: I2C address of the tuner for programming
···
 	int pid_filtering;
 
 	/* locking */
-	struct semaphore usb_sem;
+	struct mutex usb_mutex;
 
 	/* i2c */
-	struct semaphore i2c_sem;
+	struct mutex i2c_mutex;
 	struct i2c_adapter i2c_adap;
 
 	/* tuner programming information */

drivers/media/dvb/dvb-usb/vp702x.c

···
 {
 	int ret;
 
-	if ((ret = down_interruptible(&d->usb_sem)))
+	if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
 		return ret;
 
 	if ((ret = vp702x_usb_out_op(d,REQUEST_OUT,0,0,o,olen)) < 0)
···
 	ret = vp702x_usb_in_op(d,REQUEST_IN,0,0,i,ilen);
 
 unlock:
-	up(&d->usb_sem);
+	mutex_unlock(&d->usb_mutex);
 
 	return ret;
 }

drivers/media/dvb/dvb-usb/vp7045.c

···
 	deb_xfer("out buffer: ");
 	debug_dump(outbuf,outlen+1,deb_xfer);
 
-	if ((ret = down_interruptible(&d->usb_sem)))
+	if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
 		return ret;
 
 	if (usb_control_msg(d->udev,
···
 		memcpy(in,&inbuf[1],inlen);
 
 unlock:
-	up(&d->usb_sem);
+	mutex_unlock(&d->usb_mutex);
 
 	return ret;
 }

drivers/media/dvb/frontends/bcm3510.c

···
 #include <linux/jiffies.h>
 #include <linux/string.h>
 #include <linux/slab.h>
+#include <linux/mutex.h>
 
 #include "dvb_frontend.h"
 #include "bcm3510.h"
···
 	struct dvb_frontend frontend;
 
 	/* demodulator private data */
-	struct semaphore hab_sem;
+	struct mutex hab_mutex;
 	u8 firmware_loaded:1;
 
 	unsigned long next_status_check;
···
 	dbufout(ob,olen+2,deb_hab);
 	deb_hab("\n");
 
-	if (down_interruptible(&st->hab_sem) < 0)
+	if (mutex_lock_interruptible(&st->hab_mutex) < 0)
 		return -EAGAIN;
 
 	if ((ret = bcm3510_hab_send_request(st, ob, olen+2)) < 0 ||
···
 
 	memcpy(ibuf,&ib[2],ilen);
 error:
-	up(&st->hab_sem);
+	mutex_unlock(&st->hab_mutex);
 	return ret;
 }
 
···
 	state->frontend.ops = &state->ops;
 	state->frontend.demodulator_priv = state;
 
-	sema_init(&state->hab_sem, 1);
+	mutex_init(&state->hab_mutex);
 
 	if ((ret = bcm3510_readB(state,0xe0,&v)) < 0)
 		goto error;

drivers/media/dvb/ttpci/av7110.c

···
 #include <linux/i2c.h>
 
 #include <asm/system.h>
-#include <asm/semaphore.h>
 
 #include <linux/dvb/frontend.h>
 
···
 		if (!av7110->arm_ready)
 			continue;
 
-		if (down_interruptible(&av7110->dcomlock))
+		if (mutex_lock_interruptible(&av7110->dcomlock))
 			break;
 		newloops = rdebi(av7110, DEBINOSWAP, STATUS_LOOPS, 0, 2);
-		up(&av7110->dcomlock);
+		mutex_unlock(&av7110->dcomlock);
 
 		if (newloops == av7110->arm_loops || av7110->arm_errors > 3) {
 			printk(KERN_ERR "dvb-ttpci: ARM crashed @ card %d\n",
···
 
 			recover_arm(av7110);
 
-			if (down_interruptible(&av7110->dcomlock))
+			if (mutex_lock_interruptible(&av7110->dcomlock))
 				break;
 			newloops = rdebi(av7110, DEBINOSWAP, STATUS_LOOPS, 0, 2) - 1;
-			up(&av7110->dcomlock);
+			mutex_unlock(&av7110->dcomlock);
 		}
 		av7110->arm_loops = newloops;
 		av7110->arm_errors = 0;
···
 	int ret = 0;
 	dprintk(4, "%p\n", av7110);
 
-	if (down_interruptible(&av7110->pid_mutex))
+	if (mutex_lock_interruptible(&av7110->pid_mutex))
 		return -ERESTARTSYS;
 
 	if (!(vpid & 0x8000))
···
 		ret = SetPIDs(av7110, vpid, apid, ttpid, subpid, pcrpid);
 	}
 
-	up(&av7110->pid_mutex);
+	mutex_unlock(&av7110->pid_mutex);
 	return ret;
 }
 
···
 	if (av7110->playing)
 		return 0;
 
-	if (down_interruptible(&av7110->pid_mutex))
+	if (mutex_lock_interruptible(&av7110->pid_mutex))
 		return -ERESTARTSYS;
 
 	if (synced) {
···
 	if (!ret)
 		av7110->fe_synced = synced;
 
-	up(&av7110->pid_mutex);
+	mutex_unlock(&av7110->pid_mutex);
 	return ret;
 }
 
···
 	tasklet_init (&av7110->debi_tasklet, debiirq, (unsigned long) av7110);
 	tasklet_init (&av7110->gpio_tasklet, gpioirq, (unsigned long) av7110);
 
-	sema_init(&av7110->pid_mutex, 1);
+	mutex_init(&av7110->pid_mutex);
 
 	/* locks for data transfers from/to AV7110 */
 	spin_lock_init(&av7110->debilock);
-	sema_init(&av7110->dcomlock, 1);
+	mutex_init(&av7110->dcomlock);
 	av7110->debitype = -1;
 
 	/* default OSD window */
 	av7110->osdwin = 1;
-	sema_init(&av7110->osd_sema, 1);
+	mutex_init(&av7110->osd_mutex);
 
 	/* ARM "watchdog" */
 	init_waitqueue_head(&av7110->arm_wait);

drivers/media/dvb/ttpci/av7110.h

···
 #include <linux/dvb/ca.h>
 #include <linux/dvb/osd.h>
 #include <linux/dvb/net.h>
+#include <linux/mutex.h>
 
 #include "dvbdev.h"
 #include "demux.h"
···
 	/* DEBI and polled command interface */
 
 	spinlock_t		debilock;
-	struct semaphore	dcomlock;
+	struct mutex		dcomlock;
 	volatile int		debitype;
 	volatile int		debilen;
 
···
 
 	int			osdwin;      /* currently active window */
 	u16			osdbpp[8];
-	struct semaphore	osd_sema;
+	struct mutex		osd_mutex;
 
 	/* CA */
 
···
 	struct tasklet_struct   vpe_tasklet;
 
 	int			fe_synced;
-	struct semaphore	pid_mutex;
+	struct mutex		pid_mutex;
 
 	int			video_blank;
 	struct video_status	videostate;

drivers/media/dvb/ttpci/av7110_hw.c

···
 	start = jiffies;
 	for (;;) {
 		err = time_after(jiffies, start + ARM_WAIT_FREE);
-		if (down_interruptible(&av7110->dcomlock))
+		if (mutex_lock_interruptible(&av7110->dcomlock))
 			return -ERESTARTSYS;
 		stat = rdebi(av7110, DEBINOSWAP, MSGSTATE, 0, 2);
-		up(&av7110->dcomlock);
+		mutex_unlock(&av7110->dcomlock);
 		if ((stat & flags) == 0)
 			break;
 		if (err) {
···
 		dprintk(1, "arm not ready.\n");
 		return -1;
 	}
-	if (down_interruptible(&av7110->dcomlock))
+	if (mutex_lock_interruptible(&av7110->dcomlock))
 		return -ERESTARTSYS;
 
 	ret = __av7110_send_fw_cmd(av7110, buf, length);
-	up(&av7110->dcomlock);
+	mutex_unlock(&av7110->dcomlock);
 	if (ret && ret!=-ERESTARTSYS)
 		printk(KERN_ERR "dvb-ttpci: %s(): av7110_send_fw_cmd error %d\n",
 		       __FUNCTION__, ret);
···
 		return -1;
 	}
 
-	if (down_interruptible(&av7110->dcomlock))
+	if (mutex_lock_interruptible(&av7110->dcomlock))
 		return -ERESTARTSYS;
 
 	if ((err = __av7110_send_fw_cmd(av7110, request_buf, request_buf_len)) < 0) {
-		up(&av7110->dcomlock);
+		mutex_unlock(&av7110->dcomlock);
 		printk(KERN_ERR "dvb-ttpci: av7110_fw_request error %d\n", err);
 		return err;
 	}
···
 			break;
 		if (err) {
 			printk(KERN_ERR "%s: timeout waiting for COMMAND to complete\n", __FUNCTION__);
-			up(&av7110->dcomlock);
+			mutex_unlock(&av7110->dcomlock);
 			return -ETIMEDOUT;
 		}
 #ifdef _NOHANDSHAKE
···
 			break;
 		if (err) {
 			printk(KERN_ERR "%s: timeout waiting for HANDSHAKE_REG\n", __FUNCTION__);
-			up(&av7110->dcomlock);
+			mutex_unlock(&av7110->dcomlock);
 			return -ETIMEDOUT;
 		}
 		msleep(1);
···
 	stat = rdebi(av7110, DEBINOSWAP, MSGSTATE, 0, 2);
 	if (stat & GPMQOver) {
 		printk(KERN_ERR "%s: GPMQOver\n", __FUNCTION__);
-		up(&av7110->dcomlock);
+		mutex_unlock(&av7110->dcomlock);
 		return -1;
 	}
 	else if (stat & OSDQOver) {
 		printk(KERN_ERR "%s: OSDQOver\n", __FUNCTION__);
-		up(&av7110->dcomlock);
+		mutex_unlock(&av7110->dcomlock);
 		return -1;
 	}
 #endif
···
 	for (i = 0; i < reply_buf_len; i++)
 		reply_buf[i] = rdebi(av7110, DEBINOSWAP, COM_BUFF + 2 * i, 0, 2);
 
-	up(&av7110->dcomlock);
+	mutex_unlock(&av7110->dcomlock);
 	return 0;
 }
 
···
 	unsigned long start;
 	int err;
 
-	if (down_interruptible(&av7110->dcomlock))
+	if (mutex_lock_interruptible(&av7110->dcomlock))
 		return -ERESTARTSYS;
 	start = jiffies;
 	while (1) {
···
 		if (err) {
 			printk(KERN_ERR "dvb-ttpci: %s(): timeout waiting for BUFF1_BASE == 0\n",
 			       __FUNCTION__);
-			up(&av7110->dcomlock);
+			mutex_unlock(&av7110->dcomlock);
 			return -ETIMEDOUT;
 		}
 		msleep(1);
 	}
-	up(&av7110->dcomlock);
+	mutex_unlock(&av7110->dcomlock);
 	return 0;
 }
 
···
 	int length = strlen(buf) + 1;
 	u16 cbuf[5] = { (COMTYPE_OSD << 8) + DText, 3, win, x, y };
 
-	if (down_interruptible(&av7110->dcomlock))
+	if (mutex_lock_interruptible(&av7110->dcomlock))
 		return -ERESTARTSYS;
 
 	start = jiffies;
···
 		if (ret) {
 			printk(KERN_ERR "dvb-ttpci: %s: timeout waiting for BUFF1_BASE == 0\n",
 			       __FUNCTION__);
-			up(&av7110->dcomlock);
+			mutex_unlock(&av7110->dcomlock);
 			return -ETIMEDOUT;
 		}
 		msleep(1);
···
 		if (ret) {
 			printk(KERN_ERR "dvb-ttpci: %s: timeout waiting for HANDSHAKE_REG\n",
 			       __FUNCTION__);
-			up(&av7110->dcomlock);
+			mutex_unlock(&av7110->dcomlock);
 			return -ETIMEDOUT;
 		}
 		msleep(1);
···
 	if (length & 1)
 		wdebi(av7110, DEBINOSWAP, BUFF1_BASE + i * 2, 0, 2);
 	ret = __av7110_send_fw_cmd(av7110, cbuf, 5);
-	up(&av7110->dcomlock);
+	mutex_unlock(&av7110->dcomlock);
 	if (ret && ret!=-ERESTARTSYS)
 		printk(KERN_ERR "dvb-ttpci: WriteText error %d\n", ret);
 	return ret;
···
 {
 	int ret;
 
-	if (down_interruptible(&av7110->osd_sema))
+	if (mutex_lock_interruptible(&av7110->osd_mutex))
 		return -ERESTARTSYS;
 
 	switch (dc->cmd) {
···
 		break;
 	}
 
-	up(&av7110->osd_sema);
+	mutex_unlock(&av7110->osd_mutex);
 	if (ret==-ERESTARTSYS)
 		dprintk(1, "av7110_osd_cmd(%d) returns with -ERESTARTSYS\n",dc->cmd);
 	else if (ret)

drivers/media/dvb/ttpci/budget.h

···
 #include "dvb_net.h"
 
 #include <linux/module.h>
+#include <linux/mutex.h>
+
 #include <media/saa7146.h>
 
 extern int budget_debug;
···
 	struct dmx_frontend mem_frontend;
 
 	int fe_synced;
-	struct semaphore pid_mutex;
+	struct mutex pid_mutex;
 
 	int ci_present;
 	int video_port;

drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c

···
 #include <linux/time.h>
 #include <linux/errno.h>
 #include <linux/jiffies.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
 #include "dvb_frontend.h"
 #include "dmxdev.h"
···
 #include <linux/dvb/frontend.h>
 #include <linux/dvb/dmx.h>
 #include <linux/pci.h>
-
 
 /*
   TTUSB_HWSECTIONS:
···
 	struct dvb_net dvbnet;
 
 	/* and one for USB access. */
-	struct semaphore semi2c;
-	struct semaphore semusb;
+	struct mutex semi2c;
+	struct mutex semusb;
 
 	struct dvb_adapter adapter;
 	struct usb_device *dev;
···
 	printk("\n");
 #endif
 
-	if (down_interruptible(&ttusb->semusb) < 0)
+	if (mutex_lock_interruptible(&ttusb->semusb) < 0)
 		return -EAGAIN;
 
 	err = usb_bulk_msg(ttusb->dev, ttusb->bulk_out_pipe,
···
 	if (err != 0) {
 		dprintk("%s: usb_bulk_msg(send) failed, err == %i!\n",
 			__FUNCTION__, err);
-		up(&ttusb->semusb);
+		mutex_unlock(&ttusb->semusb);
 		return err;
 	}
 	if (actual_len != len) {
 		dprintk("%s: only wrote %d of %d bytes\n", __FUNCTION__,
 			actual_len, len);
-		up(&ttusb->semusb);
+		mutex_unlock(&ttusb->semusb);
 		return -1;
 	}
 
···
 	if (err != 0) {
 		printk("%s: failed, receive error %d\n", __FUNCTION__,
 		       err);
-		up(&ttusb->semusb);
+		mutex_unlock(&ttusb->semusb);
 		return err;
 	}
 #if DEBUG >= 3
···
 	printk("\n");
 #endif
 	if (!needresult)
-		up(&ttusb->semusb);
+		mutex_unlock(&ttusb->semusb);
 	return 0;
 }
 
 static int ttusb_result(struct ttusb *ttusb, u8 * data, int len)
 {
 	memcpy(data, ttusb->last_result, len);
-	up(&ttusb->semusb);
+	mutex_unlock(&ttusb->semusb);
 	return 0;
 }
 
···
 	int i = 0;
 	int inc;
 
-	if (down_interruptible(&ttusb->semi2c) < 0)
+	if (mutex_lock_interruptible(&ttusb->semi2c) < 0)
 		return -EAGAIN;
 
 	while (i < num) {
···
 		i += inc;
 	}
 
-	up(&ttusb->semi2c);
+	mutex_unlock(&ttusb->semi2c);
 	return i;
 }
 
···
 	ttusb->dev = udev;
 	ttusb->c = 0;
 	ttusb->mux_state = 0;
-	sema_init(&ttusb->semi2c, 0);
-	sema_init(&ttusb->semusb, 1);
+	mutex_init(&ttusb->semi2c);
+
+	mutex_lock(&ttusb->semi2c);
+
+	mutex_init(&ttusb->semusb);
 
 	ttusb_setup_interfaces(ttusb);
 
···
 	if (ttusb_init_controller(ttusb))
 		printk("ttusb_init_controller: error\n");
 
-	up(&ttusb->semi2c);
+	mutex_unlock(&ttusb->semi2c);
 
 	dvb_register_adapter(&ttusb->adapter, "Technotrend/Hauppauge Nova-USB", THIS_MODULE);
 	ttusb->adapter.priv = ttusb;

drivers/media/dvb/ttusb-dec/ttusb_dec.c

···
  *
  */
 
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
+
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
···
 	unsigned int			out_pipe;
 	unsigned int			irq_pipe;
 	enum ttusb_dec_interface	interface;
-	struct semaphore		usb_sem;
+	struct mutex			usb_mutex;
 
 	void			*irq_buffer;
 	struct urb		*irq_urb;
···
 	dma_addr_t		iso_dma_handle;
 	struct urb		*iso_urb[ISO_BUF_COUNT];
 	int			iso_stream_count;
-	struct semaphore	iso_sem;
+	struct mutex		iso_mutex;
 
 	u8				packet[MAX_PVA_LENGTH + 4];
 	enum ttusb_dec_packet_type	packet_type;
···
 	if (!b)
 		return -ENOMEM;
 
-	if ((result = down_interruptible(&dec->usb_sem))) {
+	if ((result = mutex_lock_interruptible(&dec->usb_mutex))) {
 		kfree(b);
-		printk("%s: Failed to down usb semaphore.\n", __FUNCTION__);
+		printk("%s: Failed to lock usb mutex.\n", __FUNCTION__);
 		return result;
 	}
 
···
 	if (result) {
 		printk("%s: command bulk message failed: error %d\n",
 		       __FUNCTION__, result);
-		up(&dec->usb_sem);
+		mutex_unlock(&dec->usb_mutex);
 		kfree(b);
 		return result;
 	}
···
 	if (result) {
 		printk("%s: result bulk message failed: error %d\n",
 		       __FUNCTION__, result);
-		up(&dec->usb_sem);
+		mutex_unlock(&dec->usb_mutex);
 		kfree(b);
 		return result;
 	} else {
···
 		if (cmd_result && b[3] > 0)
 			memcpy(cmd_result, &b[4], b[3]);
 
-		up(&dec->usb_sem);
+		mutex_unlock(&dec->usb_mutex);
 
 		kfree(b);
 		return 0;
···
 
 	dprintk("%s\n", __FUNCTION__);
 
-	if (down_interruptible(&dec->iso_sem))
+	if (mutex_lock_interruptible(&dec->iso_mutex))
 		return;
 
 	dec->iso_stream_count--;
···
 			usb_kill_urb(dec->iso_urb[i]);
 	}
 
-	up(&dec->iso_sem);
+	mutex_unlock(&dec->iso_mutex);
 }
 
 /* Setting the interface of the DEC tends to take down the USB communications
···
 
 	dprintk("%s\n", __FUNCTION__);
 
-	if (down_interruptible(&dec->iso_sem))
+	if (mutex_lock_interruptible(&dec->iso_mutex))
 		return -EAGAIN;
 
 	if (!dec->iso_stream_count) {
···
 					i--;
 				}
 
-				up(&dec->iso_sem);
+				mutex_unlock(&dec->iso_mutex);
 				return result;
 			}
 		}
···
 
 	dec->iso_stream_count++;
 
-	up(&dec->iso_sem);
+	mutex_unlock(&dec->iso_mutex);
 
 	return 0;
 }
···
 {
 	dprintk("%s\n", __FUNCTION__);
 
-	sema_init(&dec->usb_sem, 1);
-	sema_init(&dec->iso_sem, 1);
+	mutex_init(&dec->usb_mutex);
+	mutex_init(&dec->iso_mutex);
 
 	dec->command_pipe = usb_sndbulkpipe(dec->udev, COMMAND_PIPE);
 	dec->result_pipe = usb_rcvbulkpipe(dec->udev, RESULT_PIPE);

drivers/media/radio/miropcm20-rds-core.c

···
 #include <linux/string.h>
 #include <linux/init.h>
 #include <linux/slab.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
+
 #include <asm/io.h>
 #include "../../../sound/oss/aci.h"
 #include "miropcm20-rds-core.h"
 
 #define DEBUG 0
 
-static struct semaphore aci_rds_sem;
+static struct mutex aci_rds_mutex;
 
 #define RDS_DATASHIFT          2   /* Bit 2 */
 #define RDS_DATAMASK        (1 << RDS_DATASHIFT)
···
 {
 	int ret;
 
-	if (down_interruptible(&aci_rds_sem))
+	if (mutex_lock_interruptible(&aci_rds_mutex))
 		return -EINTR;
 
 	rds_write(cmd);
···
 	else
 		ret = 0;
 
-	up(&aci_rds_sem);
+	mutex_unlock(&aci_rds_mutex);
 	
 	return ret;
 }
···
 
 int __init attach_aci_rds(void)
 {
-	init_MUTEX(&aci_rds_sem);
+	mutex_init(&aci_rds_mutex);
 	return 0;
 }
 

drivers/media/radio/radio-aimslab.c

···
 
 static int io = CONFIG_RADIO_RTRACK_PORT; 
 static int radio_nr = -1;
-static struct semaphore lock;
+static struct mutex lock;
 
 struct rt_device
 {
···
 static void rt_mute(struct rt_device *dev)
 {
 	dev->muted = 1;
-	down(&lock);
+	mutex_lock(&lock);
 	outb(0xd0, io);			/* volume steady, off		*/
-	up(&lock);
+	mutex_unlock(&lock);
 }
 
 static int rt_setvol(struct rt_device *dev, int vol)
 {
 	int i;
 
-	down(&lock);
+	mutex_lock(&lock);
 	
 	if(vol == dev->curvol) {	/* requested volume = current */
 		if (dev->muted) {	/* user is unmuting the card  */
 			dev->muted = 0;
 			outb (0xd8, io);	/* enable card */
 		}	
-		up(&lock);
+		mutex_unlock(&lock);
 		return 0;
 	}
 
···
 		sleep_delay(2000000);	/* make sure it's totally down	*/
 		outb(0xd0, io);		/* volume steady, off		*/
 		dev->curvol = 0;	/* track the volume state!	*/
-		up(&lock);
+		mutex_unlock(&lock);
 		return 0;
 	}
 
···
 			rt_decvol();
 
 	dev->curvol = vol;
-	up(&lock);
+	mutex_unlock(&lock);
 	return 0;
 }
 
···
 	freq += 171200;			/* Add 10.7 MHz IF 		*/
 	freq /= 800;			/* Convert to 50 kHz units	*/
 	
-	down(&lock);			/* Stop other ops interfering */
+	mutex_lock(&lock);			/* Stop other ops interfering */
 	 
 	send_0_byte (io, dev);		/*  0: LSB of frequency		*/
 
···
 	else
 		outb (0xd8, io);	/* volume steady + sigstr + on */
 		
-	up(&lock);
+	mutex_unlock(&lock);
 
 	return 0;
 }
···
 
 	/* Set up the I/O locking */
 	
-	init_MUTEX(&lock);
+	mutex_init(&lock);
 	
  	/* mute card - prevents noisy bootups */
 

drivers/media/radio/radio-aztech.c

···
 static int io = CONFIG_RADIO_AZTECH_PORT; 
 static int radio_nr = -1;
 static int radio_wait_time = 1000;
-static struct semaphore lock;
+static struct mutex lock;
 
 struct az_device
 {
···
 
 static int az_setvol(struct az_device *dev, int vol)
 {
-	down(&lock);
+	mutex_lock(&lock);
 	outb (volconvert(vol), io);
-	up(&lock);
+	mutex_unlock(&lock);
 	return 0;
 }
 
···
 	frequency += 171200;		/* Add 10.7 MHz IF		*/
 	frequency /= 800;		/* Convert to 50 kHz units	*/
 					
-	down(&lock);
+	mutex_lock(&lock);
 	
 	send_0_byte (dev);		/*  0: LSB of frequency       */
 
···
 	udelay (radio_wait_time);
 	outb_p(128+64+volconvert(dev->curvol), io);
 	
-	up(&lock);
+	mutex_unlock(&lock);
 
 	return 0;
 }
···
 		return -EBUSY;
 	}
 
-	init_MUTEX(&lock);
+	mutex_init(&lock);
 	aztech_radio.priv=&aztech_unit;
 	
 	if(video_register_device(&aztech_radio, VFL_TYPE_RADIO, radio_nr)==-1)

drivers/media/radio/radio-maestro.c

···
 #include <linux/sched.h>
 #include <asm/io.h>
 #include <asm/uaccess.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 #include <linux/pci.h>
 #include <linux/videodev.h>
+
 
 #define DRIVER_VERSION	"0.05"
 
···
 		muted,	/* VIDEO_AUDIO_MUTE */
 		stereo,	/* VIDEO_TUNER_STEREO_ON */	
 		tuned;	/* signal strength (0 or 0xffff) */
-	struct	semaphore lock;
+	struct mutex lock;
 };
 
 static u32 radio_bits_get(struct radio_device *dev)
···
 	struct radio_device *card = video_get_drvdata(dev);
 	int ret;
 
-	down(&card->lock);
+	mutex_lock(&card->lock);
 	ret = video_usercopy(inode, file, cmd, arg, radio_function);
-	up(&card->lock);
+	mutex_unlock(&card->lock);
 
 	return ret;
 }
···
 	}
 
 	radio_unit->io = pci_resource_start(pdev, 0) + GPIO_DATA;
-	init_MUTEX(&radio_unit->lock);
+	mutex_init(&radio_unit->lock);
 
 	maestro_radio_inst = video_device_alloc();
 	if (maestro_radio_inst == NULL) {

drivers/media/radio/radio-maxiradio.c

···
 #include <linux/sched.h>
 #include <asm/io.h>
 #include <asm/uaccess.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
+
 #include <linux/pci.h>
 #include <linux/videodev.h>
 
···
 		
 	unsigned long freq;
 	
-	struct  semaphore lock;
+	struct mutex lock;
 } radio_unit = {0, 0, 0, 0, };
 
 
···
 	struct radio_device *card=dev->priv;
 	int ret;
 	
-	down(&card->lock);
+	mutex_lock(&card->lock);
 	ret = video_usercopy(inode, file, cmd, arg, radio_function);
-	up(&card->lock);
+	mutex_unlock(&card->lock);
 	return ret;
 }
 
···
 	        goto err_out_free_region;
 
 	radio_unit.io = pci_resource_start(pdev, 0);
-	init_MUTEX(&radio_unit.lock);
+	mutex_init(&radio_unit.lock);
 	maxiradio_radio.priv = &radio_unit;
 
 	if(video_register_device(&maxiradio_radio, VFL_TYPE_RADIO, radio_nr)==-1) {

drivers/media/radio/radio-sf16fmi.c

···
 #include <linux/isapnp.h>
 #include <asm/io.h>		/* outb, outb_p			*/
 #include <asm/uaccess.h>	/* copy to/from user		*/
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
 struct fmi_device
 {
···
 static int io = -1; 
 static int radio_nr = -1;
 static struct pnp_dev *dev = NULL;
-static struct semaphore lock;
+static struct mutex lock;
 
 /* freq is in 1/16 kHz to internal number, hw precision is 50 kHz */
 /* It is only useful to give freq in intervall of 800 (=0.05Mhz),
···
 
 static inline void fmi_mute(int port)
 {
-	down(&lock);
+	mutex_lock(&lock);
 	outb(0x00, port);
-	up(&lock);
+	mutex_unlock(&lock);
 }
 
 static inline void fmi_unmute(int port)
 {
-	down(&lock);
+	mutex_lock(&lock);
 	outb(0x08, port);
-	up(&lock);
+	mutex_unlock(&lock);
 }
 
 static inline int fmi_setfreq(struct fmi_device *dev)
···
 	int myport = dev->port;
 	unsigned long freq = dev->curfreq;
 
-	down(&lock);
+	mutex_lock(&lock);
 
 	outbits(16, RSF16_ENCODE(freq), myport);
 	outbits(8, 0xC0, myport);
 	msleep(143);		/* was schedule_timeout(HZ/7) */
-	up(&lock);
+	mutex_unlock(&lock);
 	if (dev->curvol) fmi_unmute(myport);
 	return 0;
 }
···
 	int myport = dev->port;
 
 	
-	down(&lock);
+	mutex_lock(&lock);
 	val = dev->curvol ? 0x08 : 0x00;	/* unmute/mute */
 	outb(val, myport);
 	outb(val | 0x10, myport);
···
 	res = (int)inb(myport+1);
 	outb(val, myport);
 	
-	up(&lock);
+	mutex_unlock(&lock);
 	return (res & 2) ? 0 : 0xFFFF;
 }
 
···
 	fmi_unit.flags = VIDEO_TUNER_LOW;
 	fmi_radio.priv = &fmi_unit;
 	
-	init_MUTEX(&lock);
+	mutex_init(&lock);
 	
 	if (video_register_device(&fmi_radio, VFL_TYPE_RADIO, radio_nr) == -1) {
 		release_region(io, 2);

drivers/media/radio/radio-sf16fmr2.c

···
 #include <asm/io.h>		/* outb, outb_p			*/
 #include <asm/uaccess.h>	/* copy to/from user		*/
 #include <linux/videodev.h>	/* kernel radio structs		*/
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
-static struct semaphore lock;
+static struct mutex lock;
 
 #undef DEBUG
 //#define DEBUG 1
···
 			if (fmr2->mute)
 				v->flags |= VIDEO_AUDIO_MUTE;
 			v->mode=VIDEO_MODE_AUTO;
-			down(&lock);
+			mutex_lock(&lock);
 			v->signal = fmr2_getsigstr(fmr2);
-			up(&lock);
+			mutex_unlock(&lock);
 			return 0;
 		}
 		case VIDIOCSTUNER:
···
 			/* set card freq (if not muted) */
 			if (fmr2->curvol && !fmr2->mute)
 			{
-				down(&lock);
+				mutex_lock(&lock);
 				fmr2_setfreq(fmr2);
-				up(&lock);
+				mutex_unlock(&lock);
 			}
 			return 0;
 		}
···
 			else
 				printk(KERN_DEBUG "mute\n");
 #endif
-			down(&lock);
+			mutex_lock(&lock);
 			if (fmr2->curvol && !fmr2->mute)
 			{
 				fmr2_setvolume(fmr2);
 				fmr2_setfreq(fmr2);
 			}
 			else fmr2_mute(fmr2->port);
-			up(&lock);
+			mutex_unlock(&lock);
 			return 0;
 		}
 		case VIDIOCGUNIT:
···
 	fmr2_unit.card_type = 0;
 	fmr2_radio.priv = &fmr2_unit;
 
-	init_MUTEX(&lock);
+	mutex_init(&lock);
 
 	if (request_region(io, 2, "sf16fmr2"))
 	{
···
 	printk(KERN_INFO "SF16FMR2 radio card driver at 0x%x.\n", io);
 	debug_print((KERN_DEBUG "Mute %d Low %d\n",VIDEO_AUDIO_MUTE,VIDEO_TUNER_LOW));
 	/* mute card - prevents noisy bootups */
-	down(&lock);
+	mutex_lock(&lock);
 	fmr2_mute(io);
 	fmr2_product_info(&fmr2_unit);
-	up(&lock);
+	mutex_unlock(&lock);
 	debug_print((KERN_DEBUG "card_type %d\n", fmr2_unit.card_type));
 	return 0;
 }

drivers/media/radio/radio-typhoon.c

···
 	int muted;
 	unsigned long curfreq;
 	unsigned long mutefreq;
-	struct semaphore lock;
+	struct mutex lock;
 };
 
 static void typhoon_setvol_generic(struct typhoon_device *dev, int vol);
···
 
 static void typhoon_setvol_generic(struct typhoon_device *dev, int vol)
 {
-	down(&dev->lock);
+	mutex_lock(&dev->lock);
 	vol >>= 14;				/* Map 16 bit to 2 bit */
 	vol &= 3;
 	outb_p(vol / 2, dev->iobase);		/* Set the volume, high bit. */
 	outb_p(vol % 2, dev->iobase + 2);	/* Set the volume, low bit. */
-	up(&dev->lock);
+	mutex_unlock(&dev->lock);
 }
 
 static int typhoon_setfreq_generic(struct typhoon_device *dev,
···
 	 *
 	 */
 
-	down(&dev->lock);
+	mutex_lock(&dev->lock);
 	x = frequency / 160;
 	outval = (x * x + 2500) / 5000;
 	outval = (outval * x + 5000) / 10000;
···
 	outb_p((outval >> 8) & 0x01, dev->iobase + 4);
 	outb_p(outval >> 9, dev->iobase + 6);
 	outb_p(outval & 0xff, dev->iobase + 8);
-	up(&dev->lock);
+	mutex_unlock(&dev->lock);
 
 	return 0;
 }
···
 #endif /* MODULE */
 
 	printk(KERN_INFO BANNER);
-	init_MUTEX(&typhoon_unit.lock);
+	mutex_init(&typhoon_unit.lock);
 	io = typhoon_unit.iobase;
 	if (!request_region(io, 8, "typhoon")) {
 		printk(KERN_ERR "radio-typhoon: port 0x%x already in use\n",

drivers/media/radio/radio-zoltrix.c

···
 	unsigned long curfreq;
 	int muted;
 	unsigned int stereo;
-	struct semaphore lock;
+	struct mutex lock;
 };
 
 static int zol_setvol(struct zol_device *dev, int vol)
···
 	if (dev->muted)
 		return 0;
 
-	down(&dev->lock);
+	mutex_lock(&dev->lock);
 	if (vol == 0) {
 		outb(0, io);
 		outb(0, io);
 		inb(io + 3);    /* Zoltrix needs to be read to confirm */
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 		return 0;
 	}
 
 	outb(dev->curvol-1, io);
 	msleep(10);
 	inb(io + 2);
-	up(&dev->lock);
+	mutex_unlock(&dev->lock);
 	return 0;
 }
 
 static void zol_mute(struct zol_device *dev)
 {
 	dev->muted = 1;
-	down(&dev->lock);
+	mutex_lock(&dev->lock);
 	outb(0, io);
 	outb(0, io);
 	inb(io + 3);            /* Zoltrix needs to be read to confirm */
-	up(&dev->lock);
+	mutex_unlock(&dev->lock);
 }
 
 static void zol_unmute(struct zol_device *dev)
···
 	bitmask = 0xc480402c10080000ull;
 	i = 45;
 
-	down(&dev->lock);
+	mutex_lock(&dev->lock);
 	
 	outb(0, io);
 	outb(0, io);
···
 		udelay(1000);
 	}
 	
-	up(&dev->lock);
+	mutex_unlock(&dev->lock);
 	
 	if(!dev->muted)
 	{
···
 {
 	int a, b;
 
-	down(&dev->lock);
+	mutex_lock(&dev->lock);
 	outb(0x00, io);         /* This stuff I found to do nothing */
 	outb(dev->curvol, io);
 	msleep(20);
···
 	msleep(10);
 	b = inb(io);
 
-	up(&dev->lock);
+	mutex_unlock(&dev->lock);
 	
 	if (a != b)
 		return (0);
···
 {
 	int x1, x2;
 
-	down(&dev->lock);
+	mutex_lock(&dev->lock);
 	
 	outb(0x00, io);
 	outb(dev->curvol, io);
···
 	msleep(10);
 	x2 = inb(io);
 
-	up(&dev->lock);
+	mutex_unlock(&dev->lock);
 	
 	if ((x1 == x2) && (x1 == 0xcf))
 		return 1;
···
 	}
 	printk(KERN_INFO "Zoltrix Radio Plus card driver.\n");
 
-	init_MUTEX(&zoltrix_unit.lock);
+	mutex_init(&zoltrix_unit.lock);
 	
 	/* mute card - prevents noisy bootups */
 

drivers/media/video/arv.c

···
 #include <linux/mm.h>
 #include <linux/sched.h>
 #include <linux/videodev.h>
+#include <linux/mutex.h>
 
-#include <asm/semaphore.h>
 #include <asm/uaccess.h>
 #include <asm/m32r.h>
 #include <asm/io.h>
···
 	int width, height;
 	int frame_bytes, line_bytes;
 	wait_queue_head_t wait;
-	struct semaphore lock;
+	struct mutex lock;
 };
 
 static int video_nr = -1;	/* video device number (first free) */
···
 	if (ar->mode == AR_MODE_NORMAL)
 		arvcr1 |= ARVCR1_NORMAL;
 
-	down(&ar->lock);
+	mutex_lock(&ar->lock);
 
 #if USE_INT
 	local_irq_save(flags);
···
 	}
 	DEBUG(1, "ret = %d\n", ret);
 out_up:
-	up(&ar->lock);
+	mutex_unlock(&ar->lock);
 	return ret;
 }
 
···
 		    (w->width != AR_WIDTH_QVGA || w->height != AR_HEIGHT_QVGA))
 				return -EINVAL;
 
-		down(&ar->lock);
+		mutex_lock(&ar->lock);
 		ar->width = w->width;
 		ar->height = w->height;
 		if (ar->width == AR_WIDTH_VGA) {
···
 			ar->line_bytes = AR_LINE_BYTES_QVGA;
 			ar->mode = AR_MODE_INTERLACE;
 		}
-		up(&ar->lock);
+		mutex_unlock(&ar->lock);
 		return 0;
 	}
 	case VIDIOCGFBUF:
···
 void ar_release(struct video_device *vfd)
 {
 	struct ar_device *ar = vfd->priv;
-	down(&ar->lock);
+	mutex_lock(&ar->lock);
 	video_device_release(vfd);
 }
 
···
 		ar->line_bytes	= AR_LINE_BYTES_QVGA;
 		ar->mode	= AR_MODE_INTERLACE;
 	}
-	init_MUTEX(&ar->lock);
+	mutex_init(&ar->lock);
 	init_waitqueue_head(&ar->wait);
 
 #if USE_INT

drivers/media/video/bttv-driver.c

···
 		BUG();
 	}
 
-	down(&fh->cap.lock);
+	mutex_lock(&fh->cap.lock);
 		kfree(fh->ov.clips);
 	fh->ov.clips    = clips;
 	fh->ov.nclips   = n;
···
 		bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
 		retval = bttv_switch_overlay(btv,fh,new);
 	}
-	up(&fh->cap.lock);
+	mutex_unlock(&fh->cap.lock);
 	return retval;
 }
 
···
 		fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 
 		/* update our state informations */
-		down(&fh->cap.lock);
+		mutex_lock(&fh->cap.lock);
 		fh->fmt              = fmt;
 		fh->cap.field        = f->fmt.pix.field;
 		fh->cap.last         = V4L2_FIELD_NONE;
···
 		btv->init.fmt        = fmt;
 		btv->init.width      = f->fmt.pix.width;
 		btv->init.height     = f->fmt.pix.height;
-		up(&fh->cap.lock);
+		mutex_unlock(&fh->cap.lock);
 
 		return 0;
 	}
···
 		fmt = format_by_palette(pic->palette);
 		if (NULL == fmt)
 			return -EINVAL;
-		down(&fh->cap.lock);
+		mutex_lock(&fh->cap.lock);
 		if (fmt->depth != pic->depth) {
 			retval = -EINVAL;
 			goto fh_unlock_and_return;
···
 		bt848_contrast(btv,pic->contrast);
 		bt848_hue(btv,pic->hue);
 		bt848_sat(btv,pic->colour);
-		up(&fh->cap.lock);
+		mutex_unlock(&fh->cap.lock);
 		return 0;
 	}
 
···
 			return -EPERM;
 		end = (unsigned long)fbuf->base +
 			fbuf->height * fbuf->bytesperline;
-		down(&fh->cap.lock);
+		mutex_lock(&fh->cap.lock);
 		retval = -EINVAL;
 
 		switch (fbuf->depth) {
···
 			btv->fbuf.fmt.bytesperline = fbuf->bytesperline;
 		else
 			btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fbuf->depth/8;
-		up(&fh->cap.lock);
+		mutex_unlock(&fh->cap.lock);
 		return 0;
 	}
 
···
 		if (!check_alloc_btres(btv,fh,RESOURCE_OVERLAY))
 			return -EBUSY;
 
-		down(&fh->cap.lock);
+		mutex_lock(&fh->cap.lock);
 		if (*on) {
 			fh->ov.tvnorm = btv->tvnorm;
 			new = videobuf_alloc(sizeof(*new));
···
 
 		/* switch over */
 		retval = bttv_switch_overlay(btv,fh,new);
-		up(&fh->cap.lock);
+		mutex_unlock(&fh->cap.lock);
 		return retval;
 	}
 
···
 		struct video_mbuf *mbuf = arg;
 		unsigned int i;
 
-		down(&fh->cap.lock);
+		mutex_lock(&fh->cap.lock);
 		retval = videobuf_mmap_setup(&fh->cap,gbuffers,gbufsize,
 					     V4L2_MEMORY_MMAP);
 		if (retval < 0)
···
 		mbuf->size   = gbuffers * gbufsize;
 		for (i = 0; i < gbuffers; i++)
 			mbuf->offsets[i] = i * gbufsize;
-		up(&fh->cap.lock);
+		mutex_unlock(&fh->cap.lock);
 		return 0;
 	}
 	case VIDIOCMCAPTURE:
···
 		if (vm->frame >= VIDEO_MAX_FRAME)
 			return -EINVAL;
 
-		down(&fh->cap.lock);
+		mutex_lock(&fh->cap.lock);
 		retval = -EINVAL;
 		buf = (struct bttv_buffer *)fh->cap.bufs[vm->frame];
 		if (NULL == buf)
···
 		spin_lock_irqsave(&btv->s_lock,flags);
 		buffer_queue(&fh->cap,&buf->vb);
 		spin_unlock_irqrestore(&btv->s_lock,flags);
-		up(&fh->cap.lock);
+		mutex_unlock(&fh->cap.lock);
 		return 0;
 	}
 	case VIDIOCSYNC:
···
 		if (*frame >= VIDEO_MAX_FRAME)
 			return -EINVAL;
 
-		down(&fh->cap.lock);
+		mutex_lock(&fh->cap.lock);
 		retval = -EINVAL;
 		buf = (struct bttv_buffer *)fh->cap.bufs[*frame];
 		if (NULL == buf)
···
 			retval = -EINVAL;
 			break;
 		}
-		up(&fh->cap.lock);
+		mutex_unlock(&fh->cap.lock);
 		return retval;
 	}
 
···
 		if (0 == (fmt->flags & FORMAT_FLAGS_PACKED))
 			return -EINVAL;
 
-		down(&fh->cap.lock);
+		mutex_lock(&fh->cap.lock);
 		retval = -EINVAL;
 		if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
 			if (fb->fmt.width > bttv_tvnorms[btv->tvnorm].swidth)
···
 				retval = bttv_switch_overlay(btv,fh,new);
 			}
 		}
-		up(&fh->cap.lock);
+		mutex_unlock(&fh->cap.lock);
 		return retval;
 	}
 
···
 	return 0;
 
  fh_unlock_and_return:
-	up(&fh->cap.lock);
+	mutex_unlock(&fh->cap.lock);
 	return retval;
 }
 
···
 		buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream);
 	} else {
 		/* read() capture */
-		down(&fh->cap.lock);
+		mutex_lock(&fh->cap.lock);
 		if (NULL == fh->cap.read_buf) {
 			/* need to capture a new frame */
 			if (locked_btres(fh->btv,RESOURCE_VIDEO)) {
-				up(&fh->cap.lock);
+				mutex_unlock(&fh->cap.lock);
 				return POLLERR;
 			}
 			fh->cap.read_buf = videobuf_alloc(fh->cap.msize);
 			if (NULL == fh->cap.read_buf) {
-				up(&fh->cap.lock);
+				mutex_unlock(&fh->cap.lock);
 				return POLLERR;
 			}
 			fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR;
···
 			if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) {
 				kfree (fh->cap.read_buf);
 				fh->cap.read_buf = NULL;
-				up(&fh->cap.lock);
+				mutex_unlock(&fh->cap.lock);
 				return POLLERR;
 			}
 			fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
 			fh->cap.read_off = 0;
 		}
-		up(&fh->cap.lock);
+		mutex_unlock(&fh->cap.lock);
 		buf = (struct bttv_buffer*)fh->cap.read_buf;
 	}
 

drivers/media/video/bw-qcam.c

···
 #include <linux/parport.h>
 #include <linux/sched.h>
 #include <linux/videodev.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 #include <asm/uaccess.h>
 
 #include "bw-qcam.h"
···
 	
 	memcpy(&q->vdev, &qcam_template, sizeof(qcam_template));
 	
-	init_MUTEX(&q->lock);
+	mutex_init(&q->lock);
 
 	q->port_mode = (QC_ANY | QC_NOTSET);
 	q->width = 320;
···
 			qcam->whitebal = p->whiteness>>8;
 			qcam->bpp = p->depth;
 
-			down(&qcam->lock);			
+			mutex_lock(&qcam->lock);
 			qc_setscanmode(qcam);
-			up(&qcam->lock);
+			mutex_unlock(&qcam->lock);
 			qcam->status |= QC_PARAM_CHANGE;
 
 			return 0;
···
 				qcam->height = 240;
 				qcam->transfer_scale = 1;
 			}
-			down(&qcam->lock);
+			mutex_lock(&qcam->lock);
 			qc_setscanmode(qcam);
-			up(&qcam->lock);
+			mutex_unlock(&qcam->lock);
 			
 			/* We must update the camera before we grab. We could
 			   just have changed the grab size */
···
 	int len;
 	parport_claim_or_block(qcam->pdev);
 	
-	down(&qcam->lock);
+	mutex_lock(&qcam->lock);
 	
 	qc_reset(qcam);
 
···
 
 	len=qc_capture(qcam, buf,count);
 	
-	up(&qcam->lock);
+	mutex_unlock(&qcam->lock);
 	
 	parport_release(qcam->pdev);
 	return len;

drivers/media/video/bw-qcam.h

···
 	struct video_device vdev;
 	struct pardevice *pdev;
 	struct parport *pport;
-	struct semaphore lock;
+	struct mutex lock;
 	int width, height;
 	int bpp;
 	int mode;

drivers/media/video/c-qcam.c

···
 #include <linux/parport.h>
 #include <linux/sched.h>
 #include <linux/videodev.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
+
 #include <asm/uaccess.h>
 
 struct qcam_device {
···
 	int contrast, brightness, whitebal;
 	int top, left;
 	unsigned int bidirectional;
-	struct semaphore lock;
+	struct mutex lock;
 };
 
 /* cameras maximum */
···
 			qcam->contrast = p->contrast>>8;
 			qcam->whitebal = p->whiteness>>8;
 
-			down(&qcam->lock);			
+			mutex_lock(&qcam->lock);
 			parport_claim_or_block(qcam->pdev);
 			qc_setup(qcam); 
 			parport_release(qcam->pdev);
-			up(&qcam->lock);
+			mutex_unlock(&qcam->lock);
 			return 0;
 		}
 		case VIDIOCSWIN:
···
 #endif
 			/* Ok we figured out what to use from our 
 			   wide choice */
-			down(&qcam->lock);
+			mutex_lock(&qcam->lock);
 			parport_claim_or_block(qcam->pdev);
 			qc_setup(qcam);
 			parport_release(qcam->pdev);
-			up(&qcam->lock);
+			mutex_unlock(&qcam->lock);
 			return 0;
 		}
 		case VIDIOCGWIN:
···
 	struct qcam_device *qcam=(struct qcam_device *)v;
 	int len;
 
-	down(&qcam->lock);
+	mutex_lock(&qcam->lock);
 	parport_claim_or_block(qcam->pdev);
 	/* Probably should have a semaphore against multiple users */
 	len = qc_capture(qcam, buf,count); 
 	parport_release(qcam->pdev);
-	up(&qcam->lock);
+	mutex_unlock(&qcam->lock);
 	return len;
 }
 
···
 	
 	memcpy(&q->vdev, &qcam_template, sizeof(qcam_template));
 
-	init_MUTEX(&q->lock);
+	mutex_init(&q->lock);
 	q->width = q->ccd_width = 320;
 	q->height = q->ccd_height = 240;
 	q->mode = QC_MILLIONS | QC_DECIMATION_1;

drivers/media/video/cpia.c

···
 #include <linux/pagemap.h>
 #include <linux/delay.h>
 #include <asm/io.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
 #ifdef CONFIG_KMOD
 #include <linux/kmod.h>
···
 	
 	buffer = page;
 	
-	if (down_interruptible(&cam->param_lock))
+	if (mutex_lock_interruptible(&cam->param_lock))
 		return -ERESTARTSYS;
 	
 	/*
···
 	} else
 		DBG("error: %d\n", retval);
 	
-	up(&cam->param_lock);
+	mutex_unlock(&cam->param_lock);
 	
 out:
 	free_page((unsigned long)page);
···
 	case CPIA_COMMAND_GetColourParams:
 	case CPIA_COMMAND_GetColourBalance:
 	case CPIA_COMMAND_GetExposure:
-		down(&cam->param_lock);
+		mutex_lock(&cam->param_lock);
 		datasize=8;
 		break;
 	case CPIA_COMMAND_ReadMCPorts: 
···
 		if (command == CPIA_COMMAND_GetColourParams ||
 		    command == CPIA_COMMAND_GetColourBalance ||
 		    command == CPIA_COMMAND_GetExposure)
-			up(&cam->param_lock);
+			mutex_unlock(&cam->param_lock);
 	} else {
 		switch(command) {
 		case CPIA_COMMAND_GetCPIAVersion:
···
 			cam->params.colourParams.brightness = data[0];
 			cam->params.colourParams.contrast = data[1];
 			cam->params.colourParams.saturation = data[2];
-			up(&cam->param_lock);
+			mutex_unlock(&cam->param_lock);
 			break;
 		case CPIA_COMMAND_GetColourBalance:
 			cam->params.colourBalance.redGain = data[0];
 			cam->params.colourBalance.greenGain = data[1];
 			cam->params.colourBalance.blueGain = data[2];
-			up(&cam->param_lock);
+			mutex_unlock(&cam->param_lock);
 			break;
 		case CPIA_COMMAND_GetExposure:
 			cam->params.exposure.gain = data[0];
···
 			cam->params.exposure.green1Comp = data[5];
 			cam->params.exposure.green2Comp = data[6];
 			cam->params.exposure.blueComp = data[7];
-			up(&cam->param_lock);
+			mutex_unlock(&cam->param_lock);
 			break;
 
 		case CPIA_COMMAND_ReadMCPorts: 
···
 	int rows, cols, linesize, subsample_422;
 
 	/* make sure params don't change while we are decoding */
-	down(&cam->param_lock);
+	mutex_lock(&cam->param_lock);
 
 	obuf = cam->decompressed_frame.data;
 	end_obuf = obuf+CPIA_MAX_FRAME_SIZE;
···
 
 	if ((ibuf[0] != MAGIC_0) || (ibuf[1] != MAGIC_1)) {
 		LOG("header not found\n");
-		up(&cam->param_lock);
+		mutex_unlock(&cam->param_lock);
 		return -1;
 	}
 
 	if ((ibuf[16] != VIDEOSIZE_QCIF) && (ibuf[16] != VIDEOSIZE_CIF)) {
 		LOG("wrong video size\n");
-		up(&cam->param_lock);
+		mutex_unlock(&cam->param_lock);
 		return -1;
 	}
 	
 	if (ibuf[17] != SUBSAMPLE_420 && ibuf[17] != SUBSAMPLE_422) {
 		LOG("illegal subtype %d\n",ibuf[17]);
-		up(&cam->param_lock);
+		mutex_unlock(&cam->param_lock);
 		return -1;
 	}
 	subsample_422 = ibuf[17] == SUBSAMPLE_422;
 	
 	if (ibuf[18] != YUVORDER_YUYV && ibuf[18] != YUVORDER_UYVY) {
 		LOG("illegal yuvorder %d\n",ibuf[18]);
-		up(&cam->param_lock);
+		mutex_unlock(&cam->param_lock);
 		return -1;
 	}
 	in_uyvy = ibuf[18] == YUVORDER_UYVY;
···
 	    (ibuf[26] != cam->params.roi.rowStart) ||
 	    (ibuf[27] != cam->params.roi.rowEnd)) {
 		LOG("ROI mismatch\n");
-		up(&cam->param_lock);
+		mutex_unlock(&cam->param_lock);
 		return -1;
 	}
 	cols = 8*(ibuf[25] - ibuf[24]);
···
 	
 	if ((ibuf[28] != NOT_COMPRESSED) && (ibuf[28] != COMPRESSED)) {
 		LOG("illegal compression %d\n",ibuf[28]);
-		up(&cam->param_lock);
+		mutex_unlock(&cam->param_lock);
 		return -1;
 	}
 	compressed = (ibuf[28] == COMPRESSED);
 	
 	if (ibuf[29] != NO_DECIMATION && ibuf[29] != DECIMATION_ENAB) {
 		LOG("illegal decimation %d\n",ibuf[29]);
-		up(&cam->param_lock);
+		mutex_unlock(&cam->param_lock);
 		return -1;
 	}
 	decimation = (ibuf[29] == DECIMATION_ENAB);	
···
 	cam->params.status.vpStatus = ibuf[38];
 	cam->params.status.errorCode = ibuf[39];
 	cam->fps = ibuf[41];
-	up(&cam->param_lock);
+	mutex_unlock(&cam->param_lock);
 	
 	linesize = skipcount(cols, out_fmt);
 	ibuf += FRAME_HEADER_SIZE;
···
 /* update various camera modes and settings */
 static void dispatch_commands(struct cam_data *cam)
 {
-	down(&cam->param_lock);
+	mutex_lock(&cam->param_lock);
 	if (cam->cmd_queue==COMMAND_NONE) {
-		up(&cam->param_lock);
+		mutex_unlock(&cam->param_lock);
 		return;
 	}
 	DEB_BYTE(cam->cmd_queue);
···
 	  }
 
 	cam->cmd_queue = COMMAND_NONE;
-	up(&cam->param_lock);
+	mutex_unlock(&cam->param_lock);
 	return;
 }
 
···
 	gain = data[2];
 	coarseL = data[3];
 
-	down(&cam->param_lock);
+	mutex_lock(&cam->param_lock);
 	light_exp = cam->params.colourParams.brightness +
 	            TC - 50 + EXP_ACC_LIGHT;
 	if(light_exp > 255)
···
 			LOG("Automatically increasing sensor_fps\n");
 		}
 	}
-	up(&cam->param_lock);
+	mutex_unlock(&cam->param_lock);
 }
 
 /*-----------------------------------------------------------------*/
···
 	int cam_exposure, old_exp;
 	if(!FIRMWARE_VERSION(1,2))
 		return;
-	down(&cam->param_lock);
+	mutex_lock(&cam->param_lock);
 	if(cam->params.flickerControl.flickerMode == 0 ||
 	   cam->raw_image[39] == 0) {
-		up(&cam->param_lock);
+		mutex_unlock(&cam->param_lock);
 		return;
 	}
 	cam_exposure = cam->raw_image[39]*2;
···
 			cam->exposure_status = EXPOSURE_NORMAL;
 
 	}
-	up(&cam->param_lock);
+	mutex_unlock(&cam->param_lock);
 }
 #undef FIRMWARE_VERSION
 
···
 	if (!try_module_get(cam->ops->owner))
 		return -ENODEV;
 
-	down(&cam->busy_lock);
+	mutex_lock(&cam->busy_lock);
 	err = -ENOMEM;
 	if (!cam->raw_image) {
 		cam->raw_image = rvmalloc(CPIA_MAX_IMAGE_SIZE);
···
 	
 	++cam->open_count;
 	file->private_data = dev;
-	up(&cam->busy_lock);
+	mutex_unlock(&cam->busy_lock);
 	return 0;
 
  oops:
···
 		rvfree(cam->raw_image, CPIA_MAX_IMAGE_SIZE);
 		cam->raw_image = NULL;
 	}
-	up(&cam->busy_lock);
+	mutex_unlock(&cam->busy_lock);
 	put_cam(cam->ops);
 	return err;
 }
···
 	int err;
 
 	/* make this _really_ smp and multithread-safe */
-	if (down_interruptible(&cam->busy_lock))
+	if (mutex_lock_interruptible(&cam->busy_lock))
 		return -EINTR;
 
 	if (!buf) {
 		DBG("buf NULL\n");
-		up(&cam->busy_lock);
+		mutex_unlock(&cam->busy_lock);
 		return -EINVAL;
 	}
 
 	if (!count) {
 		DBG("count 0\n");
-		up(&cam->busy_lock);
+		mutex_unlock(&cam->busy_lock);
 		return 0;
 	}
 
 	if (!cam->ops) {
 		DBG("ops NULL\n");
-		up(&cam->busy_lock);
+		mutex_unlock(&cam->busy_lock);
 		return -ENODEV;
 	}
 
···
 	cam->mmap_kludge=0;
 	if((err = fetch_frame(cam)) != 0) {
 		DBG("ERROR from fetch_frame: %d\n", err);
-		up(&cam->busy_lock);
+		mutex_unlock(&cam->busy_lock);
 		return err;
 	}
 	cam->decompressed_frame.state = FRAME_UNUSED;
···
 	if (cam->decompressed_frame.count > count) {
 		DBG("count wrong: %d, %lu\n", cam->decompressed_frame.count,
 		    (unsigned long) count);
-		up(&cam->busy_lock);
+		mutex_unlock(&cam->busy_lock);
 		return -EFAULT;
 	}
 	if (copy_to_user(buf, cam->decompressed_frame.data,
 	                cam->decompressed_frame.count)) {
 		DBG("copy_to_user failed\n");
-		up(&cam->busy_lock);
+		mutex_unlock(&cam->busy_lock);
 		return -EFAULT;
 	}
 
-	up(&cam->busy_lock);
+	mutex_unlock(&cam->busy_lock);
 	return cam->decompressed_frame.count;
 }
 
···
 		return -ENODEV;
 	
 	/* make this _really_ smp-safe */
-	if (down_interruptible(&cam->busy_lock))
+	if (mutex_lock_interruptible(&cam->busy_lock))
 		return -EINTR;
 
 	//DBG("cpia_ioctl: %u\n", ioctlnr);
···
 			break;
 		}
 
-		down(&cam->param_lock);
+		mutex_lock(&cam->param_lock);
 		/* brightness, colour, contrast need no check 0-65535 */
 		cam->vp = *vp;
 		/* update cam->params.colourParams */
···
 
 		/* queue command to update camera */
 		cam->cmd_queue |= COMMAND_SETCOLOURPARAMS;
-		up(&cam->param_lock);
+		mutex_unlock(&cam->param_lock);
 		DBG("VIDIOCSPICT: %d / %d // %d / %d / %d / %d\n",
 		    vp->depth, vp->palette, vp->brightness, vp->hue, vp->colour,
 		    vp->contrast);
···
 		/* we set the video window to something smaller or equal to what
 		* is requested by the user???
 		*/
-		down(&cam->param_lock);
+		mutex_lock(&cam->param_lock);
 		if (vw->width != cam->vw.width || vw->height != cam->vw.height) {
 			int video_size = match_videosize(vw->width, vw->height);
 
 			if (video_size < 0) {
 				retval = -EINVAL;
-				up(&cam->param_lock);
+				mutex_unlock(&cam->param_lock);
 				break;
 			}
 			cam->video_size = video_size;
···
 			cam->cmd_queue |= COMMAND_SETFORMAT;
 		}
 
-		up(&cam->param_lock);
+		mutex_unlock(&cam->param_lock);
 
 		/* setformat ignored by camera during streaming,
 		 * so stop/dispatch/start */
···
 
 		DBG("%d,%d/%dx%d\n", vc->x,vc->y,vc->width, vc->height);
 		
-		down(&cam->param_lock);
+		mutex_lock(&cam->param_lock);
 		
 		cam->vc.x      = vc->x;
 		cam->vc.y      = vc->y;
···
 		set_vw_size(cam);
 		cam->cmd_queue |= COMMAND_SETFORMAT;
 
-		up(&cam->param_lock);
+		mutex_unlock(&cam->param_lock);
 
 		/* setformat ignored by camera during streaming,
 		 * so stop/dispatch/start */
···
 		break;
 	}
 
-	up(&cam->busy_lock);
+	mutex_unlock(&cam->busy_lock);
 	return retval;
 } 
 
···
 		return -ENODEV;
 	
 	/* make this _really_ smp-safe */
-	if (down_interruptible(&cam->busy_lock))
+	if (mutex_lock_interruptible(&cam->busy_lock))
 		return -EINTR;
 
 	if (!cam->frame_buf) {	/* we do lazy allocation */
 		if ((retval = allocate_frame_buf(cam))) {
-			up(&cam->busy_lock);
+			mutex_unlock(&cam->busy_lock);
 			return retval;
 		}
 	}
···
 	while (size > 0) {
 		page = vmalloc_to_pfn((void *)pos);
 		if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) {
-			up(&cam->busy_lock);
+			mutex_unlock(&cam->busy_lock);
 			return -EAGAIN;
 		}
 		start += PAGE_SIZE;
···
 	}
 
 	DBG("cpia_mmap: %ld\n", size);
-	up(&cam->busy_lock);
+	mutex_unlock(&cam->busy_lock);
 
 	return 0;
 }
···
 	memset(cam, 0, sizeof(struct cam_data));
 
 	cam->ops = ops;
-	init_MUTEX(&cam->param_lock);
-	init_MUTEX(&cam->busy_lock);
+	mutex_init(&cam->param_lock);
+	mutex_init(&cam->busy_lock);
 
 	reset_camera_struct(cam);
 

drivers/media/video/cpia.h

···
 #include <linux/videodev.h>
 #include <linux/list.h>
 #include <linux/smp_lock.h>
+#include <linux/mutex.h>
 
 struct cpia_camera_ops
 {
···
 struct cam_data {
 	struct list_head cam_data_list;
 
-        struct semaphore busy_lock;     /* guard against SMP multithreading */
+        struct mutex busy_lock;     /* guard against SMP multithreading */
 	struct cpia_camera_ops *ops;	/* lowlevel driver operations */
 	void *lowlevel_data;		/* private data for lowlevel driver */
 	u8 *raw_image;			/* buffer for raw image data */
···
 	u8 mainsFreq;			/* for flicker control */
 
 				/* proc interface */
-	struct semaphore param_lock;	/* params lock for this camera */
+	struct mutex param_lock;	/* params lock for this camera */
 	struct cam_params params;	/* camera settings */
 	struct proc_dir_entry *proc_entry;	/* /proc/cpia/videoX */
 	

drivers/media/video/cx88/cx88-core.c

···
 	core->pci_bus  = pci->bus->number;
 	core->pci_slot = PCI_SLOT(pci->devfn);
 	core->pci_irqmask = 0x00fc00;
-	init_MUTEX(&core->lock);
+	mutex_init(&core->lock);
 
 	core->nr = cx88_devcount++;
 	sprintf(core->name,"cx88[%d]",core->nr);

drivers/media/video/cx88/cx88-video.c

···
 		return 1;
 
 	/* is it free? */
-	down(&core->lock);
+	mutex_lock(&core->lock);
 	if (dev->resources & bit) {
 		/* no, someone else uses it */
-		up(&core->lock);
+		mutex_unlock(&core->lock);
 		return 0;
 	}
 	/* it's free, grab it */
 	fh->resources  |= bit;
 	dev->resources |= bit;
 	dprintk(1,"res: get %d\n",bit);
-	up(&core->lock);
+	mutex_unlock(&core->lock);
 	return 1;
 }
 
···
 	if ((fh->resources & bits) != bits)
 		BUG();
 
-	down(&core->lock);
+	mutex_lock(&core->lock);
 	fh->resources  &= ~bits;
 	dev->resources &= ~bits;
 	dprintk(1,"res: put %d\n",bits);
-	up(&core->lock);
+	mutex_unlock(&core->lock);
 }
 
 /* ------------------------------------------------------------------ */
···
 		if (i == ARRAY_SIZE(tvnorms))
 			return -EINVAL;
 
-		down(&core->lock);
+		mutex_lock(&core->lock);
 		cx88_set_tvnorm(core,&tvnorms[i]);
-		up(&core->lock);
+		mutex_unlock(&core->lock);
 		return 0;
 	}
 
···
 
 		if (*i >= 4)
 			return -EINVAL;
-		down(&core->lock);
+		mutex_lock(&core->lock);
 		cx88_newstation(core);
 		video_mux(core,*i);
-		up(&core->lock);
+		mutex_unlock(&core->lock);
 		return 0;
 	}
 
···
 			return -EINVAL;
 		if (1 == radio && f->type != V4L2_TUNER_RADIO)
 			return -EINVAL;
-		down(&core->lock);
+		mutex_lock(&core->lock);
 		core->freq = f->frequency;
 		cx88_newstation(core);
 		cx88_call_i2c_clients(core,VIDIOC_S_FREQUENCY,f);
···
 		msleep (10);
 		cx88_set_tvaudio(core);
 
-		up(&core->lock);
+		mutex_unlock(&core->lock);
 		return 0;
 	}
 
···
 	pci_set_drvdata(pci_dev,dev);
 
 	/* initial device configuration */
-	down(&core->lock);
+	mutex_lock(&core->lock);
 	cx88_set_tvnorm(core,tvnorms);
 	init_controls(core);
 	video_mux(core,0);
-	up(&core->lock);
+	mutex_unlock(&core->lock);
 
 	/* start tvaudio thread */
 	if (core->tuner_type != TUNER_ABSENT)

drivers/media/video/cx88/cx88.h

···
 #include "cx88-reg.h"
 
 #include <linux/version.h>
+#include <linux/mutex.h>
 #define CX88_VERSION_CODE KERNEL_VERSION(0,0,5)
 
 #ifndef TRUE
···
 	/* IR remote control state */
 	struct cx88_IR             *ir;
 
-	struct semaphore           lock;
-
+	struct mutex               lock;
 	/* various v4l controls */
 	u32                        freq;
 

drivers/media/video/em28xx/em28xx-video.c

···
 		return -EBUSY;
 	}
 
-	init_MUTEX(&dev->fileop_lock);	/* to 1 == available */
+	mutex_init(&dev->fileop_lock);	/* to 1 == available */
 	spin_lock_init(&dev->queue_lock);
 	init_waitqueue_head(&dev->wait_frame);
 	init_waitqueue_head(&dev->wait_stream);
 
-	down(&dev->lock);
+	mutex_lock(&dev->lock);
 
 	if (dev->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 		em28xx_set_alternate(dev);
···
 
 	dev->state |= DEV_INITIALIZED;
 
-      err:
-	up(&dev->lock);
+err:
+	mutex_unlock(&dev->lock);
 	up_read(&em28xx_disconnect);
 	return errCode;
 }
···
 
 	em28xx_videodbg("users=%d\n", dev->users);
 
-	down(&dev->lock);
+	mutex_lock(&dev->lock);
 
 	em28xx_uninit_isoc(dev);
 
···
 	/* the device is already disconnect, free the remaining resources */
 	if (dev->state & DEV_DISCONNECTED) {
 		em28xx_release_resources(dev);
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 		kfree(dev);
 		return 0;
 	}
···
 
 	dev->users--;
 	wake_up_interruptible_nr(&dev->open, 1);
-	up(&dev->lock);
+	mutex_unlock(&dev->lock);
 	return 0;
 }
 
···
 		em28xx_videodbg("V4L2_BUF_TYPE_VBI_CAPTURE is set\n");
 		em28xx_videodbg("not supported yet! ...\n");
 		if (copy_to_user(buf, "", 1)) {
-			up(&dev->fileop_lock);
+			mutex_unlock(&dev->fileop_lock);
 			return -EFAULT;
 		}
 		return (1);
···
 		em28xx_videodbg("V4L2_BUF_TYPE_SLICED_VBI_CAPTURE is set\n");
 		em28xx_videodbg("not supported yet! ...\n");
 		if (copy_to_user(buf, "", 1)) {
-			up(&dev->fileop_lock);
+			mutex_unlock(&dev->fileop_lock);
 			return -EFAULT;
 		}
 		return (1);
 	}
 
-	if (down_interruptible(&dev->fileop_lock))
+	if (mutex_lock_interruptible(&dev->fileop_lock))
 		return -ERESTARTSYS;
 
 	if (dev->state & DEV_DISCONNECTED) {
 		em28xx_videodbg("device not present\n");
-		up(&dev->fileop_lock);
+		mutex_unlock(&dev->fileop_lock);
 		return -ENODEV;
 	}
 
 	if (dev->state & DEV_MISCONFIGURED) {
 		em28xx_videodbg("device misconfigured; close and open it again\n");
-		up(&dev->fileop_lock);
+		mutex_unlock(&dev->fileop_lock);
 		return -EIO;
 	}
 
 	if (dev->io == IO_MMAP) {
 		em28xx_videodbg ("IO method is set to mmap; close and open"
 				" the device again to choose the read method\n");
-		up(&dev->fileop_lock);
+		mutex_unlock(&dev->fileop_lock);
 		return -EINVAL;
 	}
 
 	if (dev->io == IO_NONE) {
 		if (!em28xx_request_buffers(dev, EM28XX_NUM_READ_FRAMES)) {
 			em28xx_errdev("read failed, not enough memory\n");
-			up(&dev->fileop_lock);
+			mutex_unlock(&dev->fileop_lock);
 			return -ENOMEM;
 		}
 		dev->io = IO_READ;
···
 	}
 
 	if (!count) {
-		up(&dev->fileop_lock);
+		mutex_unlock(&dev->fileop_lock);
 		return 0;
 	}
 
 	if (list_empty(&dev->outqueue)) {
 		if (filp->f_flags & O_NONBLOCK) {
-			up(&dev->fileop_lock);
+			mutex_unlock(&dev->fileop_lock);
 			return -EAGAIN;
 		}
 		ret = wait_event_interruptible
···
 		     (!list_empty(&dev->outqueue)) ||
 		     (dev->state & DEV_DISCONNECTED));
 		if (ret) {
-			up(&dev->fileop_lock);
+			mutex_unlock(&dev->fileop_lock);
 			return ret;
 		}
 		if (dev->state & DEV_DISCONNECTED) {
-			up(&dev->fileop_lock);
+			mutex_unlock(&dev->fileop_lock);
 			return -ENODEV;
 		}
 	}
···
 		count = f->buf.length;
 
 	if (copy_to_user(buf, f->bufmem, count)) {
-		up(&dev->fileop_lock);
+		mutex_unlock(&dev->fileop_lock);
 		return -EFAULT;
 	}
 	*f_pos += count;
 
-	up(&dev->fileop_lock);
+	mutex_unlock(&dev->fileop_lock);
 
 	return count;
 }
···
 	unsigned int mask = 0;
 	struct em28xx *dev = filp->private_data;
 
-	if (down_interruptible(&dev->fileop_lock))
+	if (mutex_lock_interruptible(&dev->fileop_lock))
 		return POLLERR;
 
 	if (dev->state & DEV_DISCONNECTED) {
···
 			if (!list_empty(&dev->outqueue))
 				mask |= POLLIN | POLLRDNORM;
 
-			up(&dev->fileop_lock);
+			mutex_unlock(&dev->fileop_lock);
 
 			return mask;
 		}
 	}
 
-	up(&dev->fileop_lock);
+	mutex_unlock(&dev->fileop_lock);
 	return POLLERR;
 }
 
···
 
 	struct em28xx *dev = filp->private_data;
 
-	if (down_interruptible(&dev->fileop_lock))
+	if (mutex_lock_interruptible(&dev->fileop_lock))
 		return -ERESTARTSYS;
 
 	if (dev->state & DEV_DISCONNECTED) {
 		em28xx_videodbg("mmap: device not present\n");
-		up(&dev->fileop_lock);
+		mutex_unlock(&dev->fileop_lock);
 		return -ENODEV;
 	}
 
 	if (dev->state & DEV_MISCONFIGURED) {
 		em28xx_videodbg ("mmap: Device is misconfigured; close and "
 						"open it again\n");
-		up(&dev->fileop_lock);
+		mutex_unlock(&dev->fileop_lock);
 		return -EIO;
 	}
 
 	if (dev->io != IO_MMAP || !(vma->vm_flags & VM_WRITE) ||
 	    size != PAGE_ALIGN(dev->frame[0].buf.length)) {
-		up(&dev->fileop_lock);
+		mutex_unlock(&dev->fileop_lock);
 		return -EINVAL;
 	}
 
···
 	}
 	if (i == dev->num_frames) {
 		em28xx_videodbg("mmap: user supplied mapping address is out of range\n");
-		up(&dev->fileop_lock);
+		mutex_unlock(&dev->fileop_lock);
 		return -EINVAL;
 	}
 
···
 	while (size > 0) {	/* size is page-aligned */
 		if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
 			em28xx_videodbg("mmap: vm_insert_page failed\n");
-			up(&dev->fileop_lock);
+			mutex_unlock(&dev->fileop_lock);
 			return -EAGAIN;
 		}
 		start += PAGE_SIZE;
···
 	vma->vm_private_data = &dev->frame[i];
 
 	em28xx_vm_open(vma);
-	up(&dev->fileop_lock);
+	mutex_unlock(&dev->fileop_lock);
 	return 0;
 }
 
···
 		if (i == TVNORMS)
 			return -EINVAL;
 
-		down(&dev->lock);
+		mutex_lock(&dev->lock);
 		dev->tvnorm = &tvnorms[i];
 
 		em28xx_set_norm(dev, dev->width, dev->height);
···
 		em28xx_i2c_call_clients(dev, VIDIOC_S_STD,
 					&dev->tvnorm->id);
 
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 
 		return 0;
 	}
···
 		if (0 == INPUT(*index)->type)
 			return -EINVAL;
 
-		down(&dev->lock);
+		mutex_lock(&dev->lock);
 		video_mux(dev, *index);
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 
 		return 0;
 	}
···
 /*		t->signal = 0xffff;*/
 /*		em28xx_i2c_call_clients(dev,VIDIOC_G_TUNER,t);*/
 		/* No way to get signal strength? */
-		down(&dev->lock);
+		mutex_lock(&dev->lock);
 		em28xx_i2c_call_clients(dev, DECODER_GET_STATUS,
 					&status);
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 		t->signal =
 			(status & DECODER_STATUS_GOOD) != 0 ? 0xffff : 0;
 
···
 		t->rangehigh = 0xffffffffUL;	/* FIXME: set correct range */
 /*		t->signal = 0xffff; */
 		/* No way to get signal strength? */
-		down(&dev->lock);
+		mutex_lock(&dev->lock);
 		em28xx_i2c_call_clients(dev, DECODER_GET_STATUS,
 					&status);
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 		t->signal =
 			(status & DECODER_STATUS_GOOD) != 0 ? 0xffff : 0;
 
···
 		if (V4L2_TUNER_ANALOG_TV != f->type)
 			return -EINVAL;
 
-		down(&dev->lock);
+		mutex_lock(&dev->lock);
 		dev->ctl_freq = f->frequency;
 		em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, f);
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 		return 0;
 	}
 	case VIDIOC_CROPCAP:
···
 	int ret = 0;
 	struct em28xx *dev = filp->private_data;
 
-	if (down_interruptible(&dev->fileop_lock))
+	if (mutex_lock_interruptible(&dev->fileop_lock))
 		return -ERESTARTSYS;
 
 	if (dev->state & DEV_DISCONNECTED) {
 		em28xx_errdev("v4l2 ioctl: device not present\n");
-		up(&dev->fileop_lock);
+		mutex_unlock(&dev->fileop_lock);
 		return -ENODEV;
 	}
 
 	if (dev->state & DEV_MISCONFIGURED) {
 		em28xx_errdev
 		    ("v4l2 ioctl: device is misconfigured; close and open it again\n");
-		up(&dev->fileop_lock);
+		mutex_unlock(&dev->fileop_lock);
 		return -EIO;
 	}
 
 	ret = video_usercopy(inode, filp, cmd, arg, em28xx_video_do_ioctl);
 
-	up(&dev->fileop_lock);
+	mutex_unlock(&dev->fileop_lock);
 
 	return ret;
 }
···
 
 	dev->udev = udev;
 	dev->model = model;
-	init_MUTEX(&dev->lock);
+	mutex_init(&dev->lock);
 	init_waitqueue_head(&dev->open);
 
 	dev->em28xx_write_regs = em28xx_write_regs;
···
 		return -ENOMEM;
 	}
 
-	down(&dev->lock);
+	mutex_lock(&dev->lock);
 	/* register i2c bus */
 	em28xx_i2c_register(dev);
 
···
 	/* configure the device */
 	em28xx_config_i2c(dev);
 
-	up(&dev->lock);
+	mutex_unlock(&dev->lock);
 
 	errCode = em28xx_config(dev);
 
···
 	list_add_tail(&dev->devlist,&em28xx_devlist);
 
 	/* register v4l2 device */
-	down(&dev->lock);
+	mutex_lock(&dev->lock);
 	if ((retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
 					 video_nr[dev->devno]))) {
 		em28xx_errdev("unable to register video device (error=%i).\n",
 			      retval);
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 		list_del(&dev->devlist);
 		video_device_release(dev->vdev);
 		kfree(dev);
···
 	if (video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
 					vbi_nr[dev->devno]) < 0) {
 		printk("unable to register vbi device\n");
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 		list_del(&dev->devlist);
 		video_device_release(dev->vbi_dev);
 		video_device_release(dev->vdev);
···
 	}
 	video_mux(dev, 0);
 
-	up(&dev->lock);
+	mutex_unlock(&dev->lock);
 
 	em28xx_info("V4L2 device registered as /dev/video%d and /dev/vbi%d\n",
 				dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN,
···
 
 	down_write(&em28xx_disconnect);
 
-	down(&dev->lock);
+	mutex_lock(&dev->lock);
 
 	em28xx_info("disconnecting %s\n", dev->vdev->name);
 
···
 		em28xx_release_resources(dev);
 	}
 
-	up(&dev->lock);
+	mutex_unlock(&dev->lock);
 
 	if (!dev->users) {
 		kfree(dev->alt_max_pkt_size);

drivers/media/video/em28xx/em28xx.h

···
 
 #include <linux/videodev.h>
 #include <linux/i2c.h>
+#include <linux/mutex.h>
 #include <media/ir-kbd-i2c.h>
 
 /* Boards supported by driver */
···
 	enum em28xx_stream_state stream;
 	enum em28xx_io_method io;
 	/* locks */
-	struct semaphore lock, fileop_lock;
+	struct mutex lock, fileop_lock;
 	spinlock_t queue_lock;
 	struct list_head inqueue, outqueue;
 	wait_queue_head_t open, wait_frame, wait_stream;

drivers/media/video/meye.c

···
 			return -EINVAL;
 		if (p->palette != VIDEO_PALETTE_YUV422)
 			return -EINVAL;
-		down(&meye.lock);
+		mutex_lock(&meye.lock);
 		sonypi_camera_command(SONYPI_COMMAND_SETCAMERABRIGHTNESS,
 				      p->brightness >> 10);
 		sonypi_camera_command(SONYPI_COMMAND_SETCAMERAHUE,
···
 		sonypi_camera_command(SONYPI_COMMAND_SETCAMERACONTRAST,
 				      p->contrast >> 10);
 		meye.picture = *p;
-		up(&meye.lock);
+		mutex_unlock(&meye.lock);
 		break;
 	}
 
···
 		if (*i < 0 || *i >= gbuffers)
 			return -EINVAL;
 
-		down(&meye.lock);
+		mutex_lock(&meye.lock);
 
 		switch (meye.grab_buffer[*i].state) {
 
 		case MEYE_BUF_UNUSED:
-			up(&meye.lock);
+			mutex_unlock(&meye.lock);
 			return -EINVAL;
 		case MEYE_BUF_USING:
 			if (file->f_flags & O_NONBLOCK) {
-				up(&meye.lock);
+				mutex_unlock(&meye.lock);
 				return -EAGAIN;
 			}
 			if (wait_event_interruptible(meye.proc_list,
 						     (meye.grab_buffer[*i].state != MEYE_BUF_USING))) {
-				up(&meye.lock);
+				mutex_unlock(&meye.lock);
 				return -EINTR;
 			}
 			/* fall through */
···
 			meye.grab_buffer[*i].state = MEYE_BUF_UNUSED;
 			kfifo_get(meye.doneq, (unsigned char *)&unused, sizeof(int));
 		}
-		up(&meye.lock);
+		mutex_unlock(&meye.lock);
 		break;
 	}
 
···
 		if (meye.grab_buffer[vm->frame].state != MEYE_BUF_UNUSED)
 			return -EBUSY;
 
-		down(&meye.lock);
+		mutex_lock(&meye.lock);
 		if (vm->width == 640 && vm->height == 480) {
 			if (meye.params.subsample) {
 				meye.params.subsample = 0;
···
 				restart = 1;
 			}
 		} else {
-			up(&meye.lock);
+			mutex_unlock(&meye.lock);
 			return -EINVAL;
 		}
 
···
 			mchip_continuous_start();
 		meye.grab_buffer[vm->frame].state = MEYE_BUF_USING;
 		kfifo_put(meye.grabq, (unsigned char *)&vm->frame, sizeof(int));
-		up(&meye.lock);
+		mutex_unlock(&meye.lock);
 		break;
 	}
 
···
 			return -EINVAL;
 		if (jp->framerate > 31)
 			return -EINVAL;
-		down(&meye.lock);
+		mutex_lock(&meye.lock);
 		if (meye.params.subsample != jp->subsample ||
 		    meye.params.quality != jp->quality)
 			mchip_hic_stop();	/* need restart */
···
 				      meye.params.agc);
 		sonypi_camera_command(SONYPI_COMMAND_SETCAMERAPICTURE,
 				      meye.params.picture);
-		up(&meye.lock);
+		mutex_unlock(&meye.lock);
 		break;
 	}
 
···
 		}
 		if (meye.grab_buffer[*nb].state != MEYE_BUF_UNUSED)
 			return -EBUSY;
-		down(&meye.lock);
+		mutex_lock(&meye.lock);
 		if (meye.mchip_mode != MCHIP_HIC_MODE_CONT_COMP)
 			mchip_cont_compression_start();
 		meye.grab_buffer[*nb].state = MEYE_BUF_USING;
 		kfifo_put(meye.grabq, (unsigned char *)nb, sizeof(int));
-		up(&meye.lock);
+		mutex_unlock(&meye.lock);
 		break;
 	}
 
···
 		if (*i < 0 || *i >= gbuffers)
 			return -EINVAL;
 
-		down(&meye.lock);
+		mutex_lock(&meye.lock);
 		switch (meye.grab_buffer[*i].state) {
 
 		case MEYE_BUF_UNUSED:
-			up(&meye.lock);
+			mutex_unlock(&meye.lock);
 			return -EINVAL;
 		case MEYE_BUF_USING:
 			if (file->f_flags & O_NONBLOCK) {
-				up(&meye.lock);
+				mutex_unlock(&meye.lock);
 				return -EAGAIN;
 			}
 			if (wait_event_interruptible(meye.proc_list,
 						     (meye.grab_buffer[*i].state != MEYE_BUF_USING))) {
-				up(&meye.lock);
+				mutex_unlock(&meye.lock);
 				return -EINTR;
 			}
 			/* fall through */
···
 			kfifo_get(meye.doneq, (unsigned char *)&unused, sizeof(int));
 		}
 		*i = meye.grab_buffer[*i].size;
-		up(&meye.lock);
+		mutex_unlock(&meye.lock);
 		break;
 	}
 
···
 			return -EINVAL;
 		if (meye.grab_buffer[0].state != MEYE_BUF_UNUSED)
 			return -EBUSY;
-		down(&meye.lock);
+		mutex_lock(&meye.lock);
 		meye.grab_buffer[0].state = MEYE_BUF_USING;
 		mchip_take_picture();
 		mchip_get_picture(
 			meye.grab_fbuffer,
 			mchip_hsize() * mchip_vsize() * 2);
 		meye.grab_buffer[0].state = MEYE_BUF_DONE;
-		up(&meye.lock);
+		mutex_unlock(&meye.lock);
 		break;
 	}
 
···
 			return -EINVAL;
 		if (meye.grab_buffer[0].state != MEYE_BUF_UNUSED)
 			return -EBUSY;
-		down(&meye.lock);
+		mutex_lock(&meye.lock);
 		meye.grab_buffer[0].state = MEYE_BUF_USING;
 		*len = -1;
 		while (*len == -1) {
···
 			*len = mchip_compress_frame(meye.grab_fbuffer, gbufsize);
 		}
 		meye.grab_buffer[0].state = MEYE_BUF_DONE;
-		up(&meye.lock);
+		mutex_unlock(&meye.lock);
 		break;
 	}
 
···
 	case VIDIOC_S_CTRL: {
 		struct v4l2_control *c = arg;
 
-		down(&meye.lock);
+		mutex_lock(&meye.lock);
 		switch (c->id) {
 		case V4L2_CID_BRIGHTNESS:
 			sonypi_camera_command(
···
 			meye.params.framerate = c->value;
 			break;
 		default:
-			up(&meye.lock);
+			mutex_unlock(&meye.lock);
 			return -EINVAL;
 		}
-		up(&meye.lock);
+		mutex_unlock(&meye.lock);
 		break;
 	}
 
 	case VIDIOC_G_CTRL: {
 		struct v4l2_control *c = arg;
 
-		down(&meye.lock);
+		mutex_lock(&meye.lock);
 		switch (c->id) {
 		case V4L2_CID_BRIGHTNESS:
 			c->value = meye.picture.brightness >> 10;
···
 			c->value = meye.params.framerate;
 			break;
 		default:
-			up(&meye.lock);
+			mutex_unlock(&meye.lock);
 			return -EINVAL;
 		}
-		up(&meye.lock);
+		mutex_unlock(&meye.lock);
 		break;
 	}
 
···
 		    f->fmt.pix.field != V4L2_FIELD_NONE)
 			return -EINVAL;
 		f->fmt.pix.field = V4L2_FIELD_NONE;
-		down(&meye.lock);
+		mutex_lock(&meye.lock);
 		if (f->fmt.pix.width <= 320) {
 			f->fmt.pix.width = 320;
 			f->fmt.pix.height = 240;
···
 			meye.mchip_mode = MCHIP_HIC_MODE_CONT_COMP;
 			break;
 		}
-		up(&meye.lock);
+		mutex_unlock(&meye.lock);
 		f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
 		f->fmt.pix.sizeimage = f->fmt.pix.height *
 				       f->fmt.pix.bytesperline;
···
 			/* already allocated, no modifications */
 			break;
 		}
-		down(&meye.lock);
+		mutex_lock(&meye.lock);
 		if (meye.grab_fbuffer) {
 			for (i = 0; i < gbuffers; i++)
 				if (meye.vma_use_count[i]) {
-					up(&meye.lock);
+					mutex_unlock(&meye.lock);
 					return -EINVAL;
 				}
 			rvfree(meye.grab_fbuffer, gbuffers * gbufsize);
···
 		if (!meye.grab_fbuffer) {
 			printk(KERN_ERR "meye: v4l framebuffer allocation"
 					" failed\n");
-			up(&meye.lock);
+			mutex_unlock(&meye.lock);
 			return -ENOMEM;
 		}
 		for (i = 0; i < gbuffers; i++)
 			meye.vma_use_count[i] = 0;
-		up(&meye.lock);
+		mutex_unlock(&meye.lock);
 		break;
 	}
 
···
 			return -EINVAL;
 		if (meye.grab_buffer[buf->index].state != MEYE_BUF_UNUSED)
 			return -EINVAL;
-		down(&meye.lock);
+		mutex_lock(&meye.lock);
 		buf->flags |= V4L2_BUF_FLAG_QUEUED;
 		buf->flags &= ~V4L2_BUF_FLAG_DONE;
 		meye.grab_buffer[buf->index].state = MEYE_BUF_USING;
 		kfifo_put(meye.grabq, (unsigned char *)&buf->index, sizeof(int));
-		up(&meye.lock);
+		mutex_unlock(&meye.lock);
 		break;
 	}
 
···
 		if (buf->memory != V4L2_MEMORY_MMAP)
 			return -EINVAL;
 
-		down(&meye.lock);
+		mutex_lock(&meye.lock);
 		if (kfifo_len(meye.doneq) == 0 && file->f_flags & O_NONBLOCK) {
-			up(&meye.lock);
+			mutex_unlock(&meye.lock);
 			return -EAGAIN;
 		}
 		if (wait_event_interruptible(meye.proc_list,
 					     kfifo_len(meye.doneq) != 0) < 0) {
-			up(&meye.lock);
+			mutex_unlock(&meye.lock);
 			return -EINTR;
 		}
 		if (!kfifo_get(meye.doneq, (unsigned char *)&reqnr,
 			       sizeof(int))) {
-			up(&meye.lock);
+			mutex_unlock(&meye.lock);
 			return -EBUSY;
 		}
 		if (meye.grab_buffer[reqnr].state != MEYE_BUF_DONE) {
-			up(&meye.lock);
+			mutex_unlock(&meye.lock);
 			return -EINVAL;
 		}
 		buf->index = reqnr;
···
 		buf->m.offset = reqnr * gbufsize;
 		buf->length = gbufsize;
 		meye.grab_buffer[reqnr].state = MEYE_BUF_UNUSED;
-		up(&meye.lock);
+		mutex_unlock(&meye.lock);
 		break;
 	}
 
 	case VIDIOC_STREAMON: {
-		down(&meye.lock);
+		mutex_lock(&meye.lock);
 		switch (meye.mchip_mode) {
 		case MCHIP_HIC_MODE_CONT_OUT:
 			mchip_continuous_start();
···
 			mchip_cont_compression_start();
 			break;
 		default:
-			up(&meye.lock);
+			mutex_unlock(&meye.lock);
 			return -EINVAL;
 		}
-		up(&meye.lock);
+		mutex_unlock(&meye.lock);
 		break;
 	}
 
 	case VIDIOC_STREAMOFF: {
 		int i;
 
-		down(&meye.lock);
+		mutex_lock(&meye.lock);
 		mchip_hic_stop();
 		kfifo_reset(meye.grabq);
 		kfifo_reset(meye.doneq);
 		for (i = 0; i < MEYE_MAX_BUFNBRS; i++)
 			meye.grab_buffer[i].state = MEYE_BUF_UNUSED;
-		up(&meye.lock);
+		mutex_unlock(&meye.lock);
 		break;
 	}
 
···
 {
 	unsigned int res = 0;
 
-	down(&meye.lock);
+	mutex_lock(&meye.lock);
 	poll_wait(file, &meye.proc_list, wait);
 	if (kfifo_len(meye.doneq))
 		res = POLLIN | POLLRDNORM;
-	up(&meye.lock);
+	mutex_unlock(&meye.lock);
 	return res;
 }
 
···
 	unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
 	unsigned long page, pos;
 
-	down(&meye.lock);
+	mutex_lock(&meye.lock);
 	if (size > gbuffers * gbufsize) {
-		up(&meye.lock);
+		mutex_unlock(&meye.lock);
 		return -EINVAL;
 	}
 	if (!meye.grab_fbuffer) {
···
 		meye.grab_fbuffer = rvmalloc(gbuffers*gbufsize);
 		if (!meye.grab_fbuffer) {
 			printk(KERN_ERR "meye: v4l framebuffer allocation failed\n");
-			up(&meye.lock);
+			mutex_unlock(&meye.lock);
 			return -ENOMEM;
 		}
 		for (i = 0; i < gbuffers; i++)
···
 	while (size > 0) {
 		page = vmalloc_to_pfn((void *)pos);
 		if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) {
-			up(&meye.lock);
+			mutex_unlock(&meye.lock);
 			return -EAGAIN;
 		}
 		start += PAGE_SIZE;
···
 	vma->vm_private_data = (void *) (offset / gbufsize);
 	meye_vm_open(vma);
 
-	up(&meye.lock);
+	mutex_unlock(&meye.lock);
 	return 0;
 }
 
···
 		goto outvideoreg;
 	}
 
-	init_MUTEX(&meye.lock);
+	mutex_init(&meye.lock);
 	init_waitqueue_head(&meye.proc_list);
 	meye.picture.depth = 16;
 	meye.picture.palette = VIDEO_PALETTE_YUV422;

drivers/media/video/meye.h

···
 
 /* private API definitions */
 #include <linux/meye.h>
+#include <linux/mutex.h>
+
 
 /* Enable jpg software correction */
 #define MEYE_JPEG_CORRECTION	1
···
 					/* list of buffers */
 	struct meye_grab_buffer grab_buffer[MEYE_MAX_BUFNBRS];
 	int vma_use_count[MEYE_MAX_BUFNBRS]; /* mmap count */
-	struct semaphore lock;		/* semaphore for open/mmap... */
+	struct mutex lock;		/* mutex for open/mmap... */
 	struct kfifo *grabq;		/* queue for buffers to be grabbed */
 	spinlock_t grabq_lock;		/* lock protecting the queue */
 	struct kfifo *doneq;		/* queue for grabbed buffers */

drivers/media/video/mxb.c

···
 		}
 		
 		/* fixme: locke das setzen des inputs mit hilfe des mutexes
-		down(&dev->lock);
+		mutex_lock(&dev->lock);
 		video_mux(dev,*i);
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 		*/
 				
 		/* fixme: check if streaming capture

drivers/media/video/planb.c

···
 #include <asm/pgtable.h>
 #include <asm/page.h>
 #include <asm/irq.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
 #include "planb.h"
 #include "saa7196.h"
···
 
 static inline void planb_lock(struct planb *pb)
 {
-	down(&pb->lock);
+	mutex_lock(&pb->lock);
 }
 
 static inline void planb_unlock(struct planb *pb)
 {
-	up(&pb->lock);
+	mutex_unlock(&pb->lock);
 }
 
 /***************/
···
 #endif
 	pb->tab_size = PLANB_MAXLINES + 40;
 	pb->suspend = 0;
-	init_MUTEX(&pb->lock);
+	mutex_init(&pb->lock);
 	pb->ch1_cmd = 0;
 	pb->ch2_cmd = 0;
 	pb->mask = 0;

drivers/media/video/planb.h

···
 	int	user;
 	unsigned int tab_size;
 	int     maxlines;
-	struct semaphore lock;
+	struct mutex lock;
 	unsigned int	irq;			/* interrupt number */
 	volatile unsigned int intr_mask;
 

drivers/media/video/pms.c

···
 #include <asm/io.h>
 #include <linux/sched.h>
 #include <linux/videodev.h>
+#include <linux/mutex.h>
+
 #include <asm/uaccess.h>
 
 
···
 	struct video_picture picture;
 	int height;
 	int width;
-	struct semaphore lock;
+	struct mutex lock;
 };
 
 struct i2c_info
···
 			struct video_channel *v = arg;
 			if(v->channel<0 || v->channel>3)
 				return -EINVAL;
-			down(&pd->lock);
+			mutex_lock(&pd->lock);
 			pms_videosource(v->channel&1);
 			pms_vcrinput(v->channel>>1);
-			up(&pd->lock);
+			mutex_unlock(&pd->lock);
 			return 0;
 		}
 		case VIDIOCGTUNER:
···
 			struct video_tuner *v = arg;
 			if(v->tuner)
 				return -EINVAL;
-			down(&pd->lock);
+			mutex_lock(&pd->lock);
 			switch(v->mode)
 			{
 				case VIDEO_MODE_AUTO:
···
 					pms_format(2);
 					break;
 				default:
-					up(&pd->lock);
+					mutex_unlock(&pd->lock);
 					return -EINVAL;
 			}
-			up(&pd->lock);
+			mutex_unlock(&pd->lock);
 			return 0;
 		}
 		case VIDIOCGPICT:
···
 			 *	Now load the card.
 			 */
 
-			down(&pd->lock);
+			mutex_lock(&pd->lock);
 			pms_brightness(p->brightness>>8);
 			pms_hue(p->hue>>8);
 			pms_colour(p->colour>>8);
 			pms_contrast(p->contrast>>8);	
-			up(&pd->lock);
+			mutex_unlock(&pd->lock);
 			return 0;
 		}
 		case VIDIOCSWIN:
···
 				return -EINVAL;
 			pd->width=vw->width;
 			pd->height=vw->height;
-			down(&pd->lock);
+			mutex_lock(&pd->lock);
 			pms_resolution(pd->width, pd->height);
-			up(&pd->lock);			/* Ok we figured out what to use from our wide choice */
+			mutex_unlock(&pd->lock);			/* Ok we figured out what to use from our wide choice */
 			return 0;
 		}
 		case VIDIOCGWIN:
···
 	struct pms_device *pd=(struct pms_device *)v;
 	int len;
 	
-	down(&pd->lock);
+	mutex_lock(&pd->lock);
 	len=pms_capture(pd, buf, (pd->picture.depth==16)?0:1,count);
-	up(&pd->lock);
+	mutex_unlock(&pd->lock);
 	return len;
 }
 
···
 		return -ENODEV;
 	}
 	memcpy(&pms_device, &pms_template, sizeof(pms_template));
-	init_MUTEX(&pms_device.lock);
+	mutex_init(&pms_device.lock);
 	pms_device.height=240;
 	pms_device.width=320;
 	pms_swsense(75);

drivers/media/video/saa5246a.c

···
 #include <linux/i2c.h>
 #include <linux/videotext.h>
 #include <linux/videodev.h>
+#include <linux/mutex.h>
+
 #include "saa5246a.h"
 
 MODULE_AUTHOR("Michael Geng <[e-mail]>");
···
 	u8     pgbuf[NUM_DAUS][VTX_VIRTUALSIZE];
 	int    is_searching[NUM_DAUS];
 	struct i2c_client *client;
-	struct semaphore lock;
+	struct mutex lock;
 };
 
 static struct video_device saa_template;	/* Declared near bottom */
···
 		return -ENOMEM;
 	}
 	strlcpy(client->name, IF_NAME, I2C_NAME_SIZE);
-	init_MUTEX(&t->lock);
+	mutex_init(&t->lock);
 
 	/*
 	 *	Now create a video4linux device
···
 	int err;
 
 	cmd = vtx_fix_command(cmd);
-	down(&t->lock);
+	mutex_lock(&t->lock);
 	err = video_usercopy(inode, file, cmd, arg, do_saa5246a_ioctl);
-	up(&t->lock);
+	mutex_unlock(&t->lock);
 	return err;
 }
 

drivers/media/video/saa5249.c

···
 #include <linux/i2c.h>
 #include <linux/videotext.h>
 #include <linux/videodev.h>
+#include <linux/mutex.h>
+
 
 #include <asm/io.h>
 #include <asm/uaccess.h>
···
 	int disp_mode;
 	int virtual_mode;
 	struct i2c_client *client;
-	struct semaphore lock;
+	struct mutex lock;
 };
 
 
···
 		return -ENOMEM;
 	}
 	strlcpy(client->name, IF_NAME, I2C_NAME_SIZE);
-	init_MUTEX(&t->lock);
+	mutex_init(&t->lock);
 	
 	/*
 	 *	Now create a video4linux device
···
 	int err;
 	
 	cmd = vtx_fix_command(cmd);
-	down(&t->lock);
+	mutex_lock(&t->lock);
 	err = video_usercopy(inode,file,cmd,arg,do_saa5249_ioctl);
-	up(&t->lock);
+	mutex_unlock(&t->lock);
 	return err;
 }
 

drivers/media/video/saa7134/saa7134-alsa.c

···
 	struct saa7134_dev *dev = saa7134->dev;
 	int err;
 
-	down(&dev->dmasound.lock);
+	mutex_lock(&dev->dmasound.lock);
 
 	dev->dmasound.read_count  = 0;
 	dev->dmasound.read_offset = 0;
 
-	up(&dev->dmasound.lock);
+	mutex_unlock(&dev->dmasound.lock);
 
 	pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
 	if (pcm == NULL)
···
 
 	chip->irq = dev->pci->irq;
 
-	init_MUTEX(&dev->dmasound.lock);
+	mutex_init(&dev->dmasound.lock);
 
 	if ((err = snd_card_saa7134_new_mixer(chip)) < 0)
 		goto __nodev;

drivers/media/video/saa7134/saa7134-core.c

···
 
 	saa_writel(SAA7134_IRQ1, 0);
 	saa_writel(SAA7134_IRQ2, 0);
-	init_MUTEX(&dev->lock);
+	mutex_init(&dev->lock);
 	spin_lock_init(&dev->slock);
 
 	saa7134_track_gpio(dev,"pre-init");

drivers/media/video/saa7134/saa7134-empress.c

···
 
 	dprintk("open minor=%d\n",minor);
 	err = -EBUSY;
-	if (down_trylock(&dev->empress_tsq.lock))
+	if (!mutex_trylock(&dev->empress_tsq.lock))
 		goto done;
 	if (dev->empress_users)
 		goto done_up;
···
 	err = 0;
 
 done_up:
-	up(&dev->empress_tsq.lock);
+	mutex_unlock(&dev->empress_tsq.lock);
 done:
 	return err;
 }
···
 
 	if (dev->empress_tsq.streaming)
 		videobuf_streamoff(&dev->empress_tsq);
-	down(&dev->empress_tsq.lock);
+	mutex_lock(&dev->empress_tsq.lock);
 	if (dev->empress_tsq.reading)
 		videobuf_read_stop(&dev->empress_tsq);
 	videobuf_mmap_free(&dev->empress_tsq);
···
 	/* stop the encoder */
 	ts_reset_encoder(dev);
 
-	up(&dev->empress_tsq.lock);
+	mutex_unlock(&dev->empress_tsq.lock);
 	return 0;
 }
 

drivers/media/video/saa7134/saa7134-oss.c

···
 	if (NULL == dev)
 		return -ENODEV;
 
-	down(&dev->dmasound.lock);
+	mutex_lock(&dev->dmasound.lock);
 	err = -EBUSY;
 	if (dev->dmasound.users_dsp)
 		goto fail1;
···
 	if (0 != err)
 		goto fail2;
 
-	up(&dev->dmasound.lock);
+	mutex_unlock(&dev->dmasound.lock);
 	return 0;
 
  fail2:
 	dev->dmasound.users_dsp--;
  fail1:
-	up(&dev->dmasound.lock);
+	mutex_unlock(&dev->dmasound.lock);
 	return err;
 }
 
···
 {
 	struct saa7134_dev *dev = file->private_data;
 
-	down(&dev->dmasound.lock);
+	mutex_lock(&dev->dmasound.lock);
 	if (dev->dmasound.recording_on)
 		dsp_rec_stop(dev);
 	dsp_buffer_free(dev);
 	dev->dmasound.users_dsp--;
 	file->private_data = NULL;
-	up(&dev->dmasound.lock);
+	mutex_unlock(&dev->dmasound.lock);
 	return 0;
 }
 
···
 	int err,ret = 0;
 
 	add_wait_queue(&dev->dmasound.wq, &wait);
-	down(&dev->dmasound.lock);
+	mutex_lock(&dev->dmasound.lock);
 	while (count > 0) {
 		/* wait for data if needed */
 		if (0 == dev->dmasound.read_count) {
···
 					ret = -EAGAIN;
 				break;
 			}
-			up(&dev->dmasound.lock);
+			mutex_unlock(&dev->dmasound.lock);
 			set_current_state(TASK_INTERRUPTIBLE);
 			if (0 == dev->dmasound.read_count)
 				schedule();
 			set_current_state(TASK_RUNNING);
-			down(&dev->dmasound.lock);
+			mutex_lock(&dev->dmasound.lock);
 			if (signal_pending(current)) {
 				if (0 == ret)
 					ret = -EINTR;
···
 		if (dev->dmasound.read_offset == dev->dmasound.bufsize)
 			dev->dmasound.read_offset = 0;
 	}
-	up(&dev->dmasound.lock);
+	mutex_unlock(&dev->dmasound.lock);
 	remove_wait_queue(&dev->dmasound.wq, &wait);
 	return ret;
 }
···
 	case SNDCTL_DSP_STEREO:
 		if (get_user(val, p))
 			return -EFAULT;
-		down(&dev->dmasound.lock);
+		mutex_lock(&dev->dmasound.lock);
 		dev->dmasound.channels = val ? 2 : 1;
 		if (dev->dmasound.recording_on) {
 			dsp_rec_stop(dev);
 			dsp_rec_start(dev);
 		}
-		up(&dev->dmasound.lock);
+		mutex_unlock(&dev->dmasound.lock);
 		return put_user(dev->dmasound.channels-1, p);
 
 	case SNDCTL_DSP_CHANNELS:
···
 			return -EFAULT;
 		if (val != 1 && val != 2)
 			return -EINVAL;
-		down(&dev->dmasound.lock);
+		mutex_lock(&dev->dmasound.lock);
 		dev->dmasound.channels = val;
 		if (dev->dmasound.recording_on) {
 			dsp_rec_stop(dev);
 			dsp_rec_start(dev);
 		}
-		up(&dev->dmasound.lock);
+		mutex_unlock(&dev->dmasound.lock);
 		/* fall through */
 	case SOUND_PCM_READ_CHANNELS:
 		return put_user(dev->dmasound.channels, p);
···
 		case AFMT_U16_BE:
 		case AFMT_S16_LE:
 		case AFMT_S16_BE:
-			down(&dev->dmasound.lock);
+			mutex_lock(&dev->dmasound.lock);
 			dev->dmasound.afmt = val;
 			if (dev->dmasound.recording_on) {
 				dsp_rec_stop(dev);
 				dsp_rec_start(dev);
 			}
-			up(&dev->dmasound.lock);
+			mutex_unlock(&dev->dmasound.lock);
 			return put_user(dev->dmasound.afmt, p);
 		default:
 			return -EINVAL;
···
 		return 0;
 
 	case SNDCTL_DSP_RESET:
-		down(&dev->dmasound.lock);
+		mutex_lock(&dev->dmasound.lock);
 		if (dev->dmasound.recording_on)
 			dsp_rec_stop(dev);
-		up(&dev->dmasound.lock);
+		mutex_unlock(&dev->dmasound.lock);
 		return 0;
 	case SNDCTL_DSP_GETBLKSIZE:
 		return put_user(dev->dmasound.blksize, p);
···
 	poll_wait(file, &dev->dmasound.wq, wait);
 
 	if (0 == dev->dmasound.read_count) {
-		down(&dev->dmasound.lock);
+		mutex_lock(&dev->dmasound.lock);
 		if (!dev->dmasound.recording_on)
 			dsp_rec_start(dev);
-		up(&dev->dmasound.lock);
+		mutex_unlock(&dev->dmasound.lock);
 	} else
 		mask |= (POLLIN | POLLRDNORM);
 	return mask;
···
 		return -1;
 
 	/* general */
-	init_MUTEX(&dev->dmasound.lock);
+	mutex_init(&dev->dmasound.lock);
 	init_waitqueue_head(&dev->dmasound.wq);
 
 	switch (dev->pci->device) {

drivers/media/video/saa7134/saa7134-video.c

···
 		return 1;
 
 	/* is it free? */
-	down(&dev->lock);
+	mutex_lock(&dev->lock);
 	if (dev->resources & bit) {
 		/* no, someone else uses it */
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 		return 0;
 	}
 	/* it's free, grab it */
 	fh->resources  |= bit;
 	dev->resources |= bit;
 	dprintk("res: get %d\n",bit);
-	up(&dev->lock);
+	mutex_unlock(&dev->lock);
 	return 1;
 }
 
···
 	if ((fh->resources & bits) != bits)
 		BUG();
 
-	down(&dev->lock);
+	mutex_lock(&dev->lock);
 	fh->resources  &= ~bits;
 	dev->resources &= ~bits;
 	dprintk("res: put %d\n",bits);
-	up(&dev->lock);
+	mutex_unlock(&dev->lock);
 }
 
 /* ------------------------------------------------------------------ */
···
 		if (!list_empty(&fh->cap.stream))
 			buf = list_entry(fh->cap.stream.next, struct videobuf_buffer, stream);
 	} else {
-		down(&fh->cap.lock);
+		mutex_lock(&fh->cap.lock);
 		if (UNSET == fh->cap.read_off) {
 			/* need to capture a new frame */
 			if (res_locked(fh->dev,RESOURCE_VIDEO)) {
-				up(&fh->cap.lock);
+				mutex_unlock(&fh->cap.lock);
 				return POLLERR;
 			}
 			if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,fh->cap.field)) {
-				up(&fh->cap.lock);
+				mutex_unlock(&fh->cap.lock);
 				return POLLERR;
 			}
 			fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
 			fh->cap.read_off = 0;
 		}
-		up(&fh->cap.lock);
+		mutex_unlock(&fh->cap.lock);
 		buf = fh->cap.read_buf;
 	}
 
···
 		if (0 != err)
 			return err;
 
-		down(&dev->lock);
+		mutex_lock(&dev->lock);
 		fh->win    = f->fmt.win;
 		fh->nclips = f->fmt.win.clipcount;
 		if (fh->nclips > 8)
 			fh->nclips = 8;
 		if (copy_from_user(fh->clips,f->fmt.win.clips,
 				   sizeof(struct v4l2_clip)*fh->nclips)) {
-			up(&dev->lock);
+			mutex_unlock(&dev->lock);
 			return -EFAULT;
 		}
 
···
 			start_preview(dev,fh);
 			spin_unlock_irqrestore(&dev->slock,flags);
 		}
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 		return 0;
 	case V4L2_BUF_TYPE_VBI_CAPTURE:
 		saa7134_vbi_fmt(dev,f);
···
 		return get_control(dev,arg);
 	case VIDIOC_S_CTRL:
 	{
-		down(&dev->lock);
+		mutex_lock(&dev->lock);
 		err = set_control(dev,NULL,arg);
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 		return err;
 	}
 	/* --- input switching --------------------------------------- */
···
 			return -EINVAL;
 		if (NULL == card_in(dev,*i).name)
 			return -EINVAL;
-		down(&dev->lock);
+		mutex_lock(&dev->lock);
 		video_mux(dev,*i);
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 		return 0;
 	}
 
···
 		if (i == TVNORMS)
 			return -EINVAL;
 
-		down(&dev->lock);
+		mutex_lock(&dev->lock);
 		if (res_check(fh, RESOURCE_OVERLAY)) {
 			spin_lock_irqsave(&dev->slock,flags);
 			stop_preview(dev,fh);
···
 		} else
 			set_tvnorm(dev,&tvnorms[i]);
 		saa7134_tvaudio_do_scan(dev);
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 		return 0;
 	}
 
···
 			return -EINVAL;
 		if (1 == fh->radio && V4L2_TUNER_RADIO != f->type)
 			return -EINVAL;
-		down(&dev->lock);
+		mutex_lock(&dev->lock);
 		dev->ctl_freq = f->frequency;
 
 		saa7134_i2c_call_clients(dev,VIDIOC_S_FREQUENCY,f);
 
 		saa7134_tvaudio_do_scan(dev);
-		up(&dev->lock);
+		mutex_unlock(&dev->lock);
 		return 0;
 	}
 

drivers/media/video/saa7134/saa7134.h

···
 #include <linux/input.h>
 #include <linux/notifier.h>
 #include <linux/delay.h>
+#include <linux/mutex.h>
 
 #include <asm/io.h>
 
···
 
 /* dmasound dsp status */
 struct saa7134_dmasound {
-	struct semaphore           lock;
+	struct mutex               lock;
 	int                        minor_mixer;
 	int                        minor_dsp;
 	unsigned int               users_dsp;
···
 /* global device status */
 struct saa7134_dev {
 	struct list_head           devlist;
-	struct semaphore           lock;
+	struct mutex               lock;
 	spinlock_t                 slock;
 #ifdef VIDIOC_G_PRIORITY
 	struct v4l2_prio_state     prio;

drivers/media/video/video-buf-dvb.c

···
 	if (!demux->dmx.frontend)
 		return -EINVAL;
 
-	down(&dvb->lock);
+	mutex_lock(&dvb->lock);
 	dvb->nfeeds++;
 	rc = dvb->nfeeds;
 
···
 	}
 
 out:
-	up(&dvb->lock);
+	mutex_unlock(&dvb->lock);
 	return rc;
 }
 
···
 	struct videobuf_dvb *dvb = demux->priv;
 	int err = 0;
 
-	down(&dvb->lock);
+	mutex_lock(&dvb->lock);
 	dvb->nfeeds--;
 	if (0 == dvb->nfeeds  &&  NULL != dvb->thread) {
 		// FIXME: cx8802_cancel_buffers(dev);
 		err = kthread_stop(dvb->thread);
 		dvb->thread = NULL;
 	}
-	up(&dvb->lock);
+	mutex_unlock(&dvb->lock);
 	return err;
 }
 
···
 {
 	int result;
 
-	init_MUTEX(&dvb->lock);
+	mutex_init(&dvb->lock);
 
 	/* register adapter */
 	result = dvb_register_adapter(&dvb->adapter, dvb->name, module);

drivers/media/video/video-buf.c

···
 	q->ops     = ops;
 	q->priv_data = priv;
 
-	init_MUTEX(&q->lock);
+	mutex_init(&q->lock);
 	INIT_LIST_HEAD(&q->stream);
 }
 
···
 	if (!list_empty(&q->stream))
 		return -EBUSY;
 
-	down(&q->lock);
+	mutex_lock(&q->lock);
 	count = req->count;
 	if (count > VIDEO_MAX_FRAME)
 		count = VIDEO_MAX_FRAME;
···
 	req->count = count;
 
  done:
-	up(&q->lock);
+	mutex_unlock(&q->lock);
 	return retval;
 }
 
···
 	unsigned long flags;
 	int retval;
 
-	down(&q->lock);
+	mutex_lock(&q->lock);
 	retval = -EBUSY;
 	if (q->reading)
 		goto done;
···
 	retval = 0;
 
  done:
-	up(&q->lock);
+	mutex_unlock(&q->lock);
 	return retval;
 }
 
···
 	struct videobuf_buffer *buf;
 	int retval;
 
-	down(&q->lock);
+	mutex_lock(&q->lock);
 	retval = -EBUSY;
 	if (q->reading)
 		goto done;
···
 	videobuf_status(b,buf,q->type);
 
  done:
-	up(&q->lock);
+	mutex_unlock(&q->lock);
 	return retval;
 }
 
···
 	unsigned long flags;
 	int retval;
 
-	down(&q->lock);
+	mutex_lock(&q->lock);
 	retval = -EBUSY;
 	if (q->reading)
 		goto done;
···
 	spin_unlock_irqrestore(q->irqlock,flags);
 
  done:
-	up(&q->lock);
+	mutex_unlock(&q->lock);
 	return retval;
 }
 
···
 {
 	int retval = -EINVAL;
 
-	down(&q->lock);
+	mutex_lock(&q->lock);
 	if (!q->streaming)
 		goto done;
 	videobuf_queue_cancel(q);
···
 	retval = 0;
 
  done:
-	up(&q->lock);
+	mutex_unlock(&q->lock);
 	return retval;
 }
 
···
 	unsigned size, nbufs, bytes;
 	int retval;
 
-	down(&q->lock);
+	mutex_lock(&q->lock);
 
 	nbufs = 1; size = 0;
 	q->ops->buf_setup(q,&nbufs,&size);
···
 	}
 
  done:
-	up(&q->lock);
+	mutex_unlock(&q->lock);
 	return retval;
 }
 
···
 	unsigned long flags;
 
 	dprintk(2,"%s\n",__FUNCTION__);
-	down(&q->lock);
+	mutex_lock(&q->lock);
 	retval = -EBUSY;
 	if (q->streaming)
 		goto done;
···
 	}
 
  done:
-	up(&q->lock);
+	mutex_unlock(&q->lock);
 	return retval;
 }
 
···
 	struct videobuf_buffer *buf = NULL;
 	unsigned int rc = 0;
 
-	down(&q->lock);
+	mutex_lock(&q->lock);
 	if (q->streaming) {
 		if (!list_empty(&q->stream))
 			buf = list_entry(q->stream.next,
···
 		    buf->state == STATE_ERROR)
 			rc = POLLIN|POLLRDNORM;
 	}
-	up(&q->lock);
+	mutex_unlock(&q->lock);
 	return rc;
 }
 
···
 	map->count--;
 	if (0 == map->count) {
 		dprintk(1,"munmap %p q=%p\n",map,q);
-		down(&q->lock);
+		mutex_lock(&q->lock);
 		for (i = 0; i < VIDEO_MAX_FRAME; i++) {
 			if (NULL == q->bufs[i])
 				continue;
···
 			q->bufs[i]->baddr = 0;
 			q->ops->buf_release(q,q->bufs[i]);
 		}
-		up(&q->lock);
+		mutex_unlock(&q->lock);
 		kfree(map);
 	}
 	return;
···
 	unsigned int first,last,size,i;
 	int retval;
 
-	down(&q->lock);
+	mutex_lock(&q->lock);
 	retval = -EINVAL;
 	if (!(vma->vm_flags & VM_WRITE)) {
 		dprintk(1,"mmap app bug: PROT_WRITE please\n");
···
 	retval = 0;
 
  done:
-	up(&q->lock);
+	mutex_unlock(&q->lock);
 	return retval;
 }
 

drivers/media/video/videodev.c

···
 	struct  video_device *vfl = video_devdata(file);
 	int retval = 0;
 
-	down(&vfl->lock);
+	mutex_lock(&vfl->lock);
 	if (vfl->users) {
 		retval = -EBUSY;
 	} else {
 		vfl->users++;
 	}
-	up(&vfl->lock);
+	mutex_unlock(&vfl->lock);
 	return retval;
 }
 
···
 	sprintf(vfd->devfs_name, "v4l/%s%d", name_base, i - base);
 	devfs_mk_cdev(MKDEV(VIDEO_MAJOR, vfd->minor),
 			S_IFCHR | S_IRUSR | S_IWUSR, vfd->devfs_name);
-	init_MUTEX(&vfd->lock);
+	mutex_init(&vfd->lock);
 
 	/* sysfs class */
 	memset(&vfd->class_dev, 0x00, sizeof(vfd->class_dev));

drivers/media/video/vino.c

···
 #include <linux/videodev.h>
 #include <linux/videodev2.h>
 #include <linux/video_decoder.h>
+#include <linux/mutex.h>
 
 #include <asm/paccess.h>
 #include <asm/io.h>
···
 	struct vino_framebuffer *buffer[VINO_FRAMEBUFFER_COUNT_MAX];
 
 	spinlock_t queue_lock;
-	struct semaphore queue_sem;
+	struct mutex queue_mutex;
 	wait_queue_head_t frame_wait_queue;
 };
 
···
 	/* the driver is currently processing the queue */
 	int capturing;
 
-	struct semaphore sem;
+	struct mutex mutex;
 	spinlock_t capture_lock;
 
 	unsigned int users;
···
 	if (q->type != VINO_MEMORY_MMAP)
 		return;
 
-	down(&q->queue_sem);
+	mutex_lock(&q->queue_mutex);
 
 	vino_queue_free_with_count(q, q->length);
 
-	up(&q->queue_sem);
+	mutex_unlock(&q->queue_mutex);
 }
 
 static int vino_queue_init(struct vino_framebuffer_queue *q,
···
 	if (*length < 1)
 		return -EINVAL;
 
-	down(&q->queue_sem);
+	mutex_lock(&q->queue_mutex);
 
 	if (*length > VINO_FRAMEBUFFER_COUNT_MAX)
 		*length = VINO_FRAMEBUFFER_COUNT_MAX;
···
 		q->magic = VINO_QUEUE_MAGIC;
 	}
 
-	up(&q->queue_sem);
+	mutex_unlock(&q->queue_mutex);
 
 	return ret;
 }
···
 	dprintk("open(): channel = %c\n",
 	       (vcs->channel == VINO_CHANNEL_A) ? 'A' : 'B');
 
-	down(&vcs->sem);
+	mutex_lock(&vcs->mutex);
 
 	if (vcs->users) {
 		dprintk("open(): driver busy\n");
···
 	vcs->users++;
 
  out:
-	up(&vcs->sem);
+	mutex_unlock(&vcs->mutex);
 
 	dprintk("open(): %s!\n", ret ? "failed" : "complete");
 
···
 	struct vino_channel_settings *vcs = video_get_drvdata(dev);
 	dprintk("close():\n");
 
-	down(&vcs->sem);
+	mutex_lock(&vcs->mutex);
 
 	vcs->users--;
 
···
 		vino_queue_free(&vcs->fb_queue);
 	}
 
-	up(&vcs->sem);
+	mutex_unlock(&vcs->mutex);
 
 	return 0;
 }
···
 
 	// TODO: reject mmap if already mapped
 
-	if (down_interruptible(&vcs->sem))
+	if (mutex_lock_interruptible(&vcs->mutex))
 		return -EINTR;
 
 	if (vcs->reading) {
···
 	vma->vm_ops = &vino_vm_ops;
 
 out:
-	up(&vcs->sem);
+	mutex_unlock(&vcs->mutex);
 
 	return ret;
 }
···
 	struct vino_channel_settings *vcs = video_get_drvdata(dev);
 	int ret;
 
-	if (down_interruptible(&vcs->sem))
+	if (mutex_lock_interruptible(&vcs->mutex))
 		return -EINTR;
 
 	ret = video_usercopy(inode, file, cmd, arg, vino_do_ioctl);
 
-	up(&vcs->sem);
+	mutex_unlock(&vcs->mutex);
 
 	return ret;
 }
···
 
 	vcs->capturing = 0;
 
-	init_MUTEX(&vcs->sem);
+	mutex_init(&vcs->mutex);
 	spin_lock_init(&vcs->capture_lock);
 
-	init_MUTEX(&vcs->fb_queue.queue_sem);
+	mutex_init(&vcs->fb_queue.queue_mutex);
 	spin_lock_init(&vcs->fb_queue.queue_lock);
 	init_waitqueue_head(&vcs->fb_queue.frame_wait_queue);
 

include/linux/videodev2.h

···
 #include <linux/time.h> /* need struct timeval */
 #include <linux/poll.h>
 #include <linux/device.h>
+#include <linux/mutex.h>
 #endif
 #include <linux/compiler.h> /* need __user */
 
···
 
 	/* for videodev.c intenal usage -- please don't touch */
 	int users;                     /* video_exclusive_{open|close} ... */
-	struct semaphore lock;         /* ... helper function uses these   */
+	struct mutex lock;             /* ... helper function uses these   */
 	char devfs_name[64];           /* devfs */
 	struct class_device class_dev; /* sysfs */
 };

include/media/saa7146.h

···
 #include <linux/i2c.h>		/* for i2c subsystem */
 #include <asm/io.h>		/* for accessing devices */
 #include <linux/stringify.h>
+#include <linux/mutex.h>
+
 #include <linux/vmalloc.h>	/* for vmalloc() */
 #include <linux/mm.h>		/* for vmalloc_to_page() */
 
···
 
 	/* different device locks */
 	spinlock_t			slock;
-	struct semaphore		lock;
+	struct mutex			lock;
 
 	unsigned char			__iomem *mem;		/* pointer to mapped IO memory */
 	int				revision;	/* chip revision; needed for bug-workarounds*/
···
 	void (*vv_callback)(struct saa7146_dev *dev, unsigned long status);
 
 	/* i2c-stuff */
-	struct semaphore	i2c_lock;
-	u32			i2c_bitrate;
-	struct saa7146_dma	d_i2c;	/* pointer to i2c memory */
-	wait_queue_head_t	i2c_wq;
-	int			i2c_op;
+	struct mutex			i2c_lock;
+
+	u32				i2c_bitrate;
+	struct saa7146_dma		d_i2c;	/* pointer to i2c memory */
+	wait_queue_head_t		i2c_wq;
+	int				i2c_op;
 
 	/* memories */
-	struct saa7146_dma	d_rps0;
-	struct saa7146_dma	d_rps1;
+	struct saa7146_dma		d_rps0;
+	struct saa7146_dma		d_rps1;
 };
 
 /* from saa7146_i2c.c */
···
 
 /* from saa7146_core.c */
 extern struct list_head saa7146_devices;
-extern struct semaphore saa7146_devices_lock;
+extern struct mutex saa7146_devices_lock;
 int saa7146_register_extension(struct saa7146_extension*);
 int saa7146_unregister_extension(struct saa7146_extension*);
 struct saa7146_format* format_by_fourcc(struct saa7146_dev *dev, int fourcc);

include/media/video-buf-dvb.h

···
 	struct videobuf_queue      dvbq;
 
 	/* video-buf-dvb state info */
-	struct semaphore           lock;
+	struct mutex               lock;
 	struct task_struct         *thread;
 	int                        nfeeds;
 

include/media/video-buf.h

···
 };
 
 struct videobuf_queue {
-	struct semaphore           lock;
+	struct mutex               lock;
 	spinlock_t                 *irqlock;
 	struct pci_dev             *pci;