[media] gspca - main: Cleanup source

- change copyright and erroneous comment
- small code optimization
- have constant the device template

Signed-off-by: Jean-François Moine <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/video/gspca/gspca.c

···
 /*
  * Main USB camera driver
  *
- * Copyright (C) 2008-2010 Jean-François Moine <http://moinejf.free.fr>
+ * Copyright (C) 2008-2011 Jean-François Moine <http://moinejf.free.fr>
  *
  * Camera button input handling by Márton Németh
  * Copyright (C) 2009-2010 Márton Németh <[e-mail]>
···
  *	- 0 or many INTER_PACKETs
  *	- one LAST_PACKET
  * DISCARD_PACKET invalidates the whole frame.
- * On LAST_PACKET, a new frame is returned.
  */
 void gspca_frame_add(struct gspca_dev *gspca_dev,
 			enum gspca_packet_type packet_type,
···
 		gspca_dev->usb_err = 0;
 		gspca_stream_off(gspca_dev);
 		mutex_unlock(&gspca_dev->usb_lock);
+
+		/* Don't restart the stream when switching from read
+		 * to mmap mode */
+		if (gspca_dev->memory == GSPCA_MEMORY_READ)
+			streaming = 0;
 	}
-	/* Don't restart the stream when switching from read to mmap mode */
-	if (gspca_dev->memory == GSPCA_MEMORY_READ)
-		streaming = 0;
 
 	/* free the previous allocated buffers, if any */
 	if (gspca_dev->nframes != 0)
···
 	.vidioc_g_chip_ident	= vidioc_g_chip_ident,
 };
 
-static struct video_device gspca_template = {
+static const struct video_device gspca_template = {
 	.name = "gspca main driver",
 	.fops = &dev_fops,
 	.ioctl_ops = &dev_ioctl_ops,