ALSA: usb-audio: Use standard printk helpers

Convert with dev_err() and co from snd_printk(), etc.
As there are too deep indirections (e.g. ep->chip->dev->dev),
a few new local macros, usb_audio_err() & co, are introduced.

Also, the device numbers in some messages are dropped, as they are
shown in the prefix automatically.

Signed-off-by: Takashi Iwai <[e-mail]>

sound/usb/card.c

···
 	struct usb_interface *iface = usb_ifnum_to_if(dev, interface);
 
 	if (!iface) {
-		snd_printk(KERN_ERR "%d:%u:%d : does not exist\n",
-			   dev->devnum, ctrlif, interface);
+		dev_err(&dev->dev, "%u:%d : does not exist\n",
+			ctrlif, interface);
 		return -EINVAL;
 	}
 
···
 	}
 
 	if (usb_interface_claimed(iface)) {
-		snd_printdd(KERN_INFO "%d:%d:%d: skipping, already claimed\n",
-						dev->devnum, ctrlif, interface);
+		dev_dbg(&dev->dev, "%d:%d: skipping, already claimed\n",
+			ctrlif, interface);
 		return -EINVAL;
 	}
 
···
 		int err = snd_usbmidi_create(chip->card, iface,
 					     &chip->midi_list, NULL);
 		if (err < 0) {
-			snd_printk(KERN_ERR "%d:%u:%d: cannot create sequencer device\n",
-						dev->devnum, ctrlif, interface);
+			dev_err(&dev->dev,
+				"%u:%d: cannot create sequencer device\n",
+				ctrlif, interface);
 			return -EINVAL;
 		}
 		usb_driver_claim_interface(&usb_audio_driver, iface, (void *)-1L);
···
 	if ((altsd->bInterfaceClass != USB_CLASS_AUDIO &&
 	     altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC) ||
 	    altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIOSTREAMING) {
-		snd_printdd(KERN_ERR "%d:%u:%d: skipping non-supported interface %d\n",
-					dev->devnum, ctrlif, interface, altsd->bInterfaceClass);
+		dev_dbg(&dev->dev,
+			"%u:%d: skipping non-supported interface %d\n",
+			ctrlif, interface, altsd->bInterfaceClass);
 		/* skip non-supported classes */
 		return -EINVAL;
 	}
 
 	if (snd_usb_get_speed(dev) == USB_SPEED_LOW) {
-		snd_printk(KERN_ERR "low speed audio streaming not supported\n");
+		dev_err(&dev->dev, "low speed audio streaming not supported\n");
 		return -EINVAL;
 	}
 
···
 	protocol = altsd->bInterfaceProtocol;
 
 	if (!control_header) {
-		snd_printk(KERN_ERR "cannot find UAC_HEADER\n");
+		dev_err(&dev->dev, "cannot find UAC_HEADER\n");
 		return -EINVAL;
 	}
 
 	switch (protocol) {
 	default:
-		snd_printdd(KERN_WARNING "unknown interface protocol %#02x, assuming v1\n",
-			    protocol);
+		dev_warn(&dev->dev,
+			 "unknown interface protocol %#02x, assuming v1\n",
+			 protocol);
 		/* fall through */
 
 	case UAC_VERSION_1: {
 		struct uac1_ac_header_descriptor *h1 = control_header;
 
 		if (!h1->bInCollection) {
-			snd_printk(KERN_INFO "skipping empty audio interface (v1)\n");
+			dev_info(&dev->dev, "skipping empty audio interface (v1)\n");
 			return -EINVAL;
 		}
 
 		if (h1->bLength < sizeof(*h1) + h1->bInCollection) {
-			snd_printk(KERN_ERR "invalid UAC_HEADER (v1)\n");
+			dev_err(&dev->dev, "invalid UAC_HEADER (v1)\n");
 			return -EINVAL;
 		}
 
···
 		}
 
 		if (!assoc) {
-			snd_printk(KERN_ERR "Audio class v2 interfaces need an interface association\n");
+			dev_err(&dev->dev, "Audio class v2 interfaces need an interface association\n");
 			return -EINVAL;
 		}
 
···
 	case USB_SPEED_SUPER:
 		break;
 	default:
-		snd_printk(KERN_ERR "unknown device speed %d\n", snd_usb_get_speed(dev));
+		dev_err(&dev->dev, "unknown device speed %d\n", snd_usb_get_speed(dev));
 		return -ENXIO;
 	}
 
 	err = snd_card_new(&intf->dev, index[idx], id[idx], THIS_MODULE,
 			   0, &card);
 	if (err < 0) {
-		snd_printk(KERN_ERR "cannot create card instance %d\n", idx);
+		dev_err(&dev->dev, "cannot create card instance %d\n", idx);
 		return err;
 	}
 
···
 	for (i = 0; i < SNDRV_CARDS; i++) {
 		if (usb_chip[i] && usb_chip[i]->dev == dev) {
 			if (usb_chip[i]->shutdown) {
-				snd_printk(KERN_ERR "USB device is in the shutdown state, cannot create a card instance\n");
+				dev_err(&dev->dev, "USB device is in the shutdown state, cannot create a card instance\n");
 				goto __error;
 			}
 			chip = usb_chip[i];
···
 				break;
 			}
 		if (!chip) {
-			printk(KERN_ERR "no available usb audio device\n");
+			dev_err(&dev->dev, "no available usb audio device\n");
 			goto __error;
 		}
 	}

sound/usb/clock.c

···
 		return ret;
 
 	if (ret != sizeof(pin)) {
-		snd_printk(KERN_ERR
-			"usb-audio:%d: setting selector (id %d) unexpected length %d\n",
-			chip->dev->devnum, selector_id, ret);
+		usb_audio_err(chip,
+			"setting selector (id %d) unexpected length %d\n",
+			selector_id, ret);
 		return -EINVAL;
 	}
 
···
 		return ret;
 
 	if (ret != pin) {
-		snd_printk(KERN_ERR
-			"usb-audio:%d: setting selector (id %d) to %x failed (current: %d)\n",
-			chip->dev->devnum, selector_id, pin, ret);
+		usb_audio_err(chip,
+			"setting selector (id %d) to %x failed (current: %d)\n",
+			selector_id, pin, ret);
 		return -EINVAL;
 	}
 
···
 			      &data, sizeof(data));
 
 	if (err < 0) {
-		snd_printk(KERN_WARNING "%s(): cannot get clock validity for id %d\n",
+		dev_warn(&dev->dev,
+			 "%s(): cannot get clock validity for id %d\n",
 			   __func__, source_id);
 		return 0;
 	}
···
 	entity_id &= 0xff;
 
 	if (test_and_set_bit(entity_id, visited)) {
-		snd_printk(KERN_WARNING
-			"%s(): recursive clock topology detected, id %d.\n",
-			__func__, entity_id);
+		usb_audio_warn(chip,
+			 "%s(): recursive clock topology detected, id %d.\n",
+			 __func__, entity_id);
 		return -EINVAL;
 	}
 
···
 	if (source) {
 		entity_id = source->bClockID;
 		if (validate && !uac_clock_source_is_valid(chip, entity_id)) {
-			snd_printk(KERN_ERR "usb-audio:%d: clock source %d is not valid, cannot use\n",
-				   chip->dev->devnum, entity_id);
+			usb_audio_err(chip,
+				"clock source %d is not valid, cannot use\n",
+				entity_id);
 			return -ENXIO;
 		}
 		return entity_id;
···
 		/* Selector values are one-based */
 
 		if (ret > selector->bNrInPins || ret < 1) {
-			snd_printk(KERN_ERR
+			usb_audio_err(chip,
 				"%s(): selector reported illegal value, id %d, ret %d\n",
 				__func__, selector->bClockID, ret);
 
···
 			if (err < 0)
 				continue;
 
-			snd_printk(KERN_INFO
-				"usb-audio:%d: found and selected valid clock source %d\n",
-				chip->dev->devnum, ret);
+			usb_audio_info(chip,
+				 "found and selected valid clock source %d\n",
+				 ret);
 			return ret;
 		}
 
···
 				   USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_OUT,
 				   UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep,
 				   data, sizeof(data))) < 0) {
-		snd_printk(KERN_ERR "%d:%d:%d: cannot set freq %d to ep %#x\n",
-			   dev->devnum, iface, fmt->altsetting, rate, ep);
+		dev_err(&dev->dev, "%d:%d: cannot set freq %d to ep %#x\n",
+			iface, fmt->altsetting, rate, ep);
 		return err;
 	}
 
···
 				   USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_IN,
 				   UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep,
 				   data, sizeof(data))) < 0) {
-		snd_printk(KERN_WARNING "%d:%d:%d: cannot get freq at ep %#x\n",
-			   dev->devnum, iface, fmt->altsetting, ep);
+		dev_err(&dev->dev, "%d:%d: cannot get freq at ep %#x\n",
+			iface, fmt->altsetting, ep);
 		return 0; /* some devices don't support reading */
 	}
 
 	crate = data[0] | (data[1] << 8) | (data[2] << 16);
 	if (crate != rate) {
-		snd_printd(KERN_WARNING "current rate %d is different from the runtime rate %d\n", crate, rate);
+		dev_warn(&dev->dev, "current rate %d is different from the runtime rate %d\n", crate, rate);
 		// runtime->rate = crate;
 	}
 
···
 			      snd_usb_ctrl_intf(chip) | (clock << 8),
 			      &data, sizeof(data));
 	if (err < 0) {
-		snd_printk(KERN_WARNING "%d:%d:%d: cannot get freq (v2): err %d\n",
-			   dev->devnum, iface, altsetting, err);
+		dev_warn(&dev->dev, "%d:%d: cannot get freq (v2): err %d\n",
+			 iface, altsetting, err);
 		return 0;
 	}
 
···
 				      snd_usb_ctrl_intf(chip) | (clock << 8),
 				      &data, sizeof(data));
 		if (err < 0) {
-			snd_printk(KERN_ERR "%d:%d:%d: cannot set freq %d (v2): err %d\n",
-				   dev->devnum, iface, fmt->altsetting, rate, err);
+			usb_audio_err(chip,
+				"%d:%d: cannot set freq %d (v2): err %d\n",
+				iface, fmt->altsetting, rate, err);
 			return err;
 		}
 
···
 
 	if (cur_rate != rate) {
 		if (!writeable) {
-			snd_printk(KERN_WARNING
-				   "%d:%d:%d: freq mismatch (RO clock): req %d, clock runs @%d\n",
-				   dev->devnum, iface, fmt->altsetting, rate, cur_rate);
+			usb_audio_warn(chip,
+				 "%d:%d: freq mismatch (RO clock): req %d, clock runs @%d\n",
+				 iface, fmt->altsetting, rate, cur_rate);
 			return -ENXIO;
 		}
-		snd_printd(KERN_WARNING
-			   "current rate %d is different from the runtime rate %d\n",
-			   cur_rate, rate);
+		usb_audio_dbg(chip,
+			"current rate %d is different from the runtime rate %d\n",
+			cur_rate, rate);
 	}
 
 	/* Some devices doesn't respond to sample rate changes while the

sound/usb/endpoint.c

···
 
 		err = usb_submit_urb(ctx->urb, GFP_ATOMIC);
 		if (err < 0)
-			snd_printk(KERN_ERR "Unable to submit urb #%d: %d (urb %p)\n",
-				   ctx->index, err, ctx->urb);
+			usb_audio_err(ep->chip,
+				"Unable to submit urb #%d: %d (urb %p)\n",
+				ctx->index, err, ctx->urb);
 		else
 			set_bit(ctx->index, &ep->active_mask);
 	}
···
 	if (err == 0)
 		return;
 
-	snd_printk(KERN_ERR "cannot submit urb (err = %d)\n", err);
+	usb_audio_err(ep->chip, "cannot submit urb (err = %d)\n", err);
 	//snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
 
 exit_clear:
···
 		if (ep->ep_num == ep_num &&
 		    ep->iface == alts->desc.bInterfaceNumber &&
 		    ep->altsetting == alts->desc.bAlternateSetting) {
-			snd_printdd(KERN_DEBUG "Re-using EP %x in iface %d,%d @%p\n",
+			usb_audio_dbg(ep->chip,
+				      "Re-using EP %x in iface %d,%d @%p\n",
 					ep_num, ep->iface, ep->altsetting, ep);
 			goto __exit_unlock;
 		}
 	}
 
-	snd_printdd(KERN_DEBUG "Creating new %s %s endpoint #%x\n",
+	usb_audio_dbg(chip, "Creating new %s %s endpoint #%x\n",
 		    is_playback ? "playback" : "capture",
 		    type == SND_USB_ENDPOINT_TYPE_DATA ? "data" : "sync",
 		    ep_num);
···
 	} while (time_before(jiffies, end_time));
 
 	if (alive)
-		snd_printk(KERN_ERR "timeout: still %d active urbs on EP #%x\n",
-					alive, ep->ep_num);
+		usb_audio_err(ep->chip,
+			"timeout: still %d active urbs on EP #%x\n",
+			alive, ep->ep_num);
 	clear_bit(EP_FLAG_STOPPING, &ep->flags);
 
 	return 0;
···
 	int err;
 
 	if (ep->use_count != 0) {
-		snd_printk(KERN_WARNING "Unable to change format on ep #%x: already in use\n",
-			   ep->ep_num);
+		usb_audio_warn(ep->chip,
+			 "Unable to change format on ep #%x: already in use\n",
+			 ep->ep_num);
 		return -EBUSY;
 	}
 
···
 		err = -EINVAL;
 	}
 
-	snd_printdd(KERN_DEBUG "Setting params for ep #%x (type %d, %d urbs), ret=%d\n",
-		   ep->ep_num, ep->type, ep->nurbs, err);
+	usb_audio_dbg(ep->chip,
+		"Setting params for ep #%x (type %d, %d urbs), ret=%d\n",
+		ep->ep_num, ep->type, ep->nurbs, err);
 
 	return err;
 }
···
 
 		err = usb_submit_urb(urb, GFP_ATOMIC);
 		if (err < 0) {
-			snd_printk(KERN_ERR "cannot submit urb %d, error %d: %s\n",
-				   i, err, usb_error_string(err));
+			usb_audio_err(ep->chip,
+				"cannot submit urb %d, error %d: %s\n",
+				i, err, usb_error_string(err));
 			goto __error;
 		}
 		set_bit(i, &ep->active_mask);

sound/usb/format.c

···
 	if ((pcm_formats == 0) &&
 	    (format == 0 || format == (1 << UAC_FORMAT_TYPE_I_UNDEFINED))) {
 		/* some devices don't define this correctly... */
-		snd_printdd(KERN_INFO "%d:%u:%d : format type 0 is detected, processed as PCM\n",
-			    chip->dev->devnum, fp->iface, fp->altsetting);
+		usb_audio_info(chip, "%u:%d : format type 0 is detected, processed as PCM\n",
+			fp->iface, fp->altsetting);
 		format = 1 << UAC_FORMAT_TYPE_I_PCM;
 	}
 	if (format & (1 << UAC_FORMAT_TYPE_I_PCM)) {
···
 		    sample_width == 24 && sample_bytes == 2)
 			sample_bytes = 3;
 		else if (sample_width > sample_bytes * 8) {
-			snd_printk(KERN_INFO "%d:%u:%d : sample bitwidth %d in over sample bytes %d\n",
-				   chip->dev->devnum, fp->iface, fp->altsetting,
-				   sample_width, sample_bytes);
+			usb_audio_info(chip, "%u:%d : sample bitwidth %d in over sample bytes %d\n",
+				 fp->iface, fp->altsetting,
+				 sample_width, sample_bytes);
 		}
 		/* check the format byte size */
 		switch (sample_bytes) {
···
 			pcm_formats |= SNDRV_PCM_FMTBIT_S32_LE;
 			break;
 		default:
-			snd_printk(KERN_INFO "%d:%u:%d : unsupported sample bitwidth %d in %d bytes\n",
-				   chip->dev->devnum, fp->iface, fp->altsetting,
-				   sample_width, sample_bytes);
+			usb_audio_info(chip,
+				 "%u:%d : unsupported sample bitwidth %d in %d bytes\n",
+				 fp->iface, fp->altsetting,
+				 sample_width, sample_bytes);
 			break;
 		}
 	}
···
 		pcm_formats |= SNDRV_PCM_FMTBIT_MU_LAW;
 	}
 	if (format & ~0x3f) {
-		snd_printk(KERN_INFO "%d:%u:%d : unsupported format bits %#x\n",
-			   chip->dev->devnum, fp->iface, fp->altsetting, format);
+		usb_audio_info(chip,
+			 "%u:%d : unsupported format bits %#x\n",
+			 fp->iface, fp->altsetting, format);
 	}
 
 	pcm_formats |= snd_usb_interface_dsd_format_quirks(chip, fp, sample_bytes);
···
 	int nr_rates = fmt[offset];
 
 	if (fmt[0] < offset + 1 + 3 * (nr_rates ? nr_rates : 2)) {
-		snd_printk(KERN_ERR "%d:%u:%d : invalid UAC_FORMAT_TYPE desc\n",
-				   chip->dev->devnum, fp->iface, fp->altsetting);
+		usb_audio_err(chip,
+			"%u:%d : invalid UAC_FORMAT_TYPE desc\n",
+			fp->iface, fp->altsetting);
 		return -EINVAL;
 	}
 
···
 
 		fp->rate_table = kmalloc(sizeof(int) * nr_rates, GFP_KERNEL);
 		if (fp->rate_table == NULL) {
-			snd_printk(KERN_ERR "cannot malloc\n");
+			usb_audio_err(chip, "cannot malloc\n");
 			return -ENOMEM;
 		}
 
···
  * get to know how many sample rates we have to expect.
  * Then fp->rate_table can be allocated and filled.
  */
-static int parse_uac2_sample_rate_range(struct audioformat *fp, int nr_triplets,
+static int parse_uac2_sample_rate_range(struct snd_usb_audio *chip,
+					struct audioformat *fp, int nr_triplets,
 					const unsigned char *data)
 {
 	int i, nr_rates = 0;
···
 
 			nr_rates++;
 			if (nr_rates >= MAX_NR_RATES) {
-				snd_printk(KERN_ERR "invalid uac2 rates\n");
+				usb_audio_err(chip, "invalid uac2 rates\n");
 				break;
 			}
 
···
 	int clock = snd_usb_clock_find_source(chip, fp->clock, false);
 
 	if (clock < 0) {
-		snd_printk(KERN_ERR "%s(): unable to find clock source (clock %d)\n",
+		dev_err(&dev->dev,
+			"%s(): unable to find clock source (clock %d)\n",
 				__func__, clock);
 		goto err;
 	}
···
 			      tmp, sizeof(tmp));
 
 	if (ret < 0) {
-		snd_printk(KERN_ERR "%s(): unable to retrieve number of sample rates (clock %d)\n",
+		dev_err(&dev->dev,
+			"%s(): unable to retrieve number of sample rates (clock %d)\n",
 				__func__, clock);
 		goto err;
 	}
···
 			      data, data_size);
 
 	if (ret < 0) {
-		snd_printk(KERN_ERR "%s(): unable to retrieve sample rate range (clock %d)\n",
+		dev_err(&dev->dev,
+			"%s(): unable to retrieve sample rate range (clock %d)\n",
 				__func__, clock);
 		ret = -EINVAL;
 		goto err_free;
···
 	 * will have to deal with. */
 	kfree(fp->rate_table);
 	fp->rate_table = NULL;
-	fp->nr_rates = parse_uac2_sample_rate_range(fp, nr_triplets, data);
+	fp->nr_rates = parse_uac2_sample_rate_range(chip, fp, nr_triplets, data);
 
 	if (fp->nr_rates == 0) {
 		/* SNDRV_PCM_RATE_CONTINUOUS */
···
 
 	/* Call the triplet parser again, but this time, fp->rate_table is
 	 * allocated, so the rates will be stored */
-	parse_uac2_sample_rate_range(fp, nr_triplets, data);
+	parse_uac2_sample_rate_range(chip, fp, nr_triplets, data);
 
 err_free:
 	kfree(data);
···
 	}
 
 	if (fp->channels < 1) {
-		snd_printk(KERN_ERR "%d:%u:%d : invalid channels %d\n",
-			   chip->dev->devnum, fp->iface, fp->altsetting, fp->channels);
+		usb_audio_err(chip,
+			"%u:%d : invalid channels %d\n",
+			fp->iface, fp->altsetting, fp->channels);
 		return -EINVAL;
 	}
 
···
 		fp->formats = SNDRV_PCM_FMTBIT_MPEG;
 		break;
 	default:
-		snd_printd(KERN_INFO "%d:%u:%d : unknown format tag %#x is detected.  processed as MPEG.\n",
-			   chip->dev->devnum, fp->iface, fp->altsetting, format);
+		usb_audio_info(chip,
+			 "%u:%d : unknown format tag %#x is detected.  processed as MPEG.\n",
+			 fp->iface, fp->altsetting, format);
 		fp->formats = SNDRV_PCM_FMTBIT_MPEG;
 		break;
 	}
···
 		struct uac_format_type_ii_discrete_descriptor *fmt = _fmt;
 		brate = le16_to_cpu(fmt->wMaxBitRate);
 		framesize = le16_to_cpu(fmt->wSamplesPerFrame);
-		snd_printd(KERN_INFO "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize);
+		usb_audio_info(chip, "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize);
 		fp->frame_size = framesize;
 		ret = parse_audio_format_rates_v1(chip, fp, _fmt, 8); /* fmt[8..] sample rates */
 		break;
···
 		struct uac_format_type_ii_ext_descriptor *fmt = _fmt;
 		brate = le16_to_cpu(fmt->wMaxBitRate);
 		framesize = le16_to_cpu(fmt->wSamplesPerFrame);
-		snd_printd(KERN_INFO "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize);
+		usb_audio_info(chip, "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize);
 		fp->frame_size = framesize;
 		ret = parse_audio_format_rates_v2(chip, fp);
 		break;
···
 		err = parse_audio_format_ii(chip, fp, format, fmt);
 		break;
 	default:
-		snd_printd(KERN_INFO "%d:%u:%d : format type %d is not supported yet\n",
-			   chip->dev->devnum, fp->iface, fp->altsetting,
-			   fmt->bFormatType);
+		usb_audio_info(chip,
+			 "%u:%d : format type %d is not supported yet\n",
+			 fp->iface, fp->altsetting,
+			 fmt->bFormatType);
 		return -ENOTSUPP;
 	}
 	fp->fmt_type = fmt->bFormatType;

sound/usb/midi.c

···
 {
 	int err = usb_submit_urb(urb, flags);
 	if (err < 0 && err != -ENODEV)
-		snd_printk(KERN_ERR "usb_submit_urb: %d\n", err);
+		dev_err(&urb->dev->dev, "usb_submit_urb: %d\n", err);
 	return err;
 }
 
 /*
  * Error handling for URB completion functions.
  */
-static int snd_usbmidi_urb_error(int status)
+static int snd_usbmidi_urb_error(const struct urb *urb)
 {
-	switch (status) {
+	switch (urb->status) {
 	/* manually unlinked, or device gone */
 	case -ENOENT:
 	case -ECONNRESET:
···
 	case -EILSEQ:
 		return -EIO;
 	default:
-		snd_printk(KERN_ERR "urb status %d\n", status);
+		dev_err(&urb->dev->dev, "urb status %d\n", urb->status);
 		return 0; /* continue */
 	}
 }
···
 	struct usbmidi_in_port* port = &ep->ports[portidx];
 
 	if (!port->substream) {
-		snd_printd("unexpected port %d!\n", portidx);
+		dev_dbg(&ep->umidi->dev->dev, "unexpected port %d!\n", portidx);
 		return;
 	}
 	if (!test_bit(port->substream->number, &ep->umidi->input_triggered))
···
 		ep->umidi->usb_protocol_ops->input(ep, urb->transfer_buffer,
 						   urb->actual_length);
 	} else {
-		int err = snd_usbmidi_urb_error(urb->status);
+		int err = snd_usbmidi_urb_error(urb);
 		if (err < 0) {
 			if (err != -ENODEV) {
 				ep->error_resubmit = 1;
···
 	}
 	spin_unlock(&ep->buffer_lock);
 	if (urb->status < 0) {
-		int err = snd_usbmidi_urb_error(urb->status);
+		int err = snd_usbmidi_urb_error(urb);
 		if (err < 0) {
 			if (err != -ENODEV)
 				mod_timer(&ep->umidi->error_timer,
···
 
 	struct snd_rawmidi_substream *substream = snd_usbmidi_find_substream(umidi, stream, number);
 	if (!substream) {
-		snd_printd(KERN_ERR "substream %d:%d not found\n", stream, number);
+		dev_err(&umidi->dev->dev, "substream %d:%d not found\n", stream, number);
 		return;
 	}
 
···
 			}
 		}
 	}
-	snd_printdd(KERN_INFO "created %d output and %d input ports\n",
+	dev_dbg(&umidi->dev->dev, "created %d output and %d input ports\n",
 		    out_ports, in_ports);
 	return 0;
 }
···
 	    ms_header->bLength >= 7 &&
 	    ms_header->bDescriptorType == USB_DT_CS_INTERFACE &&
 	    ms_header->bDescriptorSubtype == UAC_HEADER)
-		snd_printdd(KERN_INFO "MIDIStreaming version %02x.%02x\n",
+		dev_dbg(&umidi->dev->dev, "MIDIStreaming version %02x.%02x\n",
 			    ms_header->bcdMSC[1], ms_header->bcdMSC[0]);
 	else
-		snd_printk(KERN_WARNING "MIDIStreaming interface descriptor not found\n");
+		dev_warn(&umidi->dev->dev,
+			 "MIDIStreaming interface descriptor not found\n");
 
 	epidx = 0;
 	for (i = 0; i < intfd->bNumEndpoints; ++i) {
···
 		if (usb_endpoint_dir_out(ep)) {
 			if (endpoints[epidx].out_ep) {
 				if (++epidx >= MIDI_MAX_ENDPOINTS) {
-					snd_printk(KERN_WARNING "too many endpoints\n");
+					dev_warn(&umidi->dev->dev,
+						 "too many endpoints\n");
 					break;
 				}
 			}
···
 				 */
 				endpoints[epidx].out_interval = 1;
 			endpoints[epidx].out_cables = (1 << ms_ep->bNumEmbMIDIJack) - 1;
-			snd_printdd(KERN_INFO "EP %02X: %d jack(s)\n",
+			dev_dbg(&umidi->dev->dev, "EP %02X: %d jack(s)\n",
 				    ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack);
 		} else {
 			if (endpoints[epidx].in_ep) {
 				if (++epidx >= MIDI_MAX_ENDPOINTS) {
-					snd_printk(KERN_WARNING "too many endpoints\n");
+					dev_warn(&umidi->dev->dev,
+						 "too many endpoints\n");
 					break;
 				}
 			}
···
 			else if (snd_usb_get_speed(umidi->dev) == USB_SPEED_LOW)
 				endpoints[epidx].in_interval = 1;
 			endpoints[epidx].in_cables = (1 << ms_ep->bNumEmbMIDIJack) - 1;
-			snd_printdd(KERN_INFO "EP %02X: %d jack(s)\n",
+			dev_dbg(&umidi->dev->dev, "EP %02X: %d jack(s)\n",
 				    ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack);
 		}
 	}
···
 	    (get_endpoint(hostif, 1)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT)
 		return;
 
-	snd_printdd(KERN_INFO "switching to altsetting %d with int ep\n",
+	dev_dbg(&umidi->dev->dev, "switching to altsetting %d with int ep\n",
 		    intfd->bAlternateSetting);
 	usb_set_interface(umidi->dev, intfd->bInterfaceNumber,
 			  intfd->bAlternateSetting);
···
 	 * input bulk endpoints (at indices 1 and 3) which aren't used.
 	 */
 	if (intfd->bNumEndpoints < (endpoint->out_cables > 0x0001 ? 5 : 3)) {
-		snd_printdd(KERN_ERR "not enough endpoints\n");
+		dev_dbg(&umidi->dev->dev, "not enough endpoints\n");
 		return -ENOENT;
 	}
 
 	epd = get_endpoint(hostif, 0);
 	if (!usb_endpoint_dir_in(epd) || !usb_endpoint_xfer_int(epd)) {
-		snd_printdd(KERN_ERR "endpoint[0] isn't interrupt\n");
+		dev_dbg(&umidi->dev->dev, "endpoint[0] isn't interrupt\n");
 		return -ENXIO;
 	}
 	epd = get_endpoint(hostif, 2);
 	if (!usb_endpoint_dir_out(epd) || !usb_endpoint_xfer_bulk(epd)) {
-		snd_printdd(KERN_ERR "endpoint[2] isn't bulk output\n");
+		dev_dbg(&umidi->dev->dev, "endpoint[2] isn't bulk output\n");
 		return -ENXIO;
 	}
 	if (endpoint->out_cables > 0x0001) {
 		epd = get_endpoint(hostif, 4);
 		if (!usb_endpoint_dir_out(epd) ||
 		    !usb_endpoint_xfer_bulk(epd)) {
-			snd_printdd(KERN_ERR "endpoint[4] isn't bulk output\n");
+			dev_dbg(&umidi->dev->dev, "endpoint[4] isn't bulk output\n");
 			return -ENXIO;
 		}
 	}
···
 		err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
 		break;
 	default:
-		snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type);
+		dev_err(&umidi->dev->dev, "invalid quirk type %d\n", quirk->type);
 		err = -ENXIO;
 		break;
 	}

sound/usb/mixer.c

···
 			goto out;
 		}
 	}
-	snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
-		    request, validx, idx, cval->val_type);
+	usb_audio_dbg(chip,
+		"cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
+		request, validx, idx, cval->val_type);
 	err = -EINVAL;
 
  out:
···
 
 	if (ret < 0) {
 error:
-		snd_printk(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
-			   request, validx, idx, cval->val_type);
+		usb_audio_err(chip,
+			"cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
+			request, validx, idx, cval->val_type);
 		return ret;
 	}
 
···
 	err = get_cur_mix_raw(cval, channel, value);
 	if (err < 0) {
 		if (!cval->mixer->ignore_ctl_error)
-			snd_printd(KERN_ERR "cannot get current value for control %d ch %d: err = %d\n",
+			usb_audio_dbg(cval->mixer->chip,
+				"cannot get current value for control %d ch %d: err = %d\n",
 				   cval->control, channel, err);
 		return err;
 	}
···
 
 		/* FIXME */
 		if (request != UAC_SET_CUR) {
-			snd_printdd(KERN_WARNING "RANGE setting not yet supported\n");
+			usb_audio_dbg(chip, "RANGE setting not yet supported\n");
 			return -EINVAL;
 		}
 
···
 			goto out;
 		}
 	}
-	snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n",
+	usb_audio_dbg(chip, "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n",
 		    request, validx, idx, cval->val_type, buf[0], buf[1]);
 	err = -EINVAL;
 
···
 		cval->ch_readonly & (1 << (channel - 1));
 
 	if (read_only) {
-		snd_printdd(KERN_INFO "%s(): channel %d of control %d is read_only\n",
+		usb_audio_dbg(cval->mixer->chip,
+			      "%s(): channel %d of control %d is read_only\n",
 			    __func__, channel, cval->control);
 		return 0;
 	}
···
 	while (snd_ctl_find_id(mixer->chip->card, &kctl->id))
 		kctl->id.index++;
 	if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) {
-		snd_printd(KERN_ERR "cannot add control (err = %d)\n", err);
+		usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n", err);
 		return err;
 	}
 	cval->elem_id = &kctl->id;
···
 static void volume_control_quirks(struct usb_mixer_elem_info *cval,
 				  struct snd_kcontrol *kctl)
 {
-	switch (cval->mixer->chip->usb_id) {
+	struct snd_usb_audio *chip = cval->mixer->chip;
+	switch (chip->usb_id) {
 	case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */
 	case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */
 		if (strcmp(kctl->id.name, "Effect Duration") == 0) {
···
 	case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */
 	case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */
 		if (strcmp(kctl->id.name, "Effect Duration") == 0) {
-			snd_printk(KERN_INFO
-				"usb-audio: set quirk for FTU Effect Duration\n");
+			usb_audio_info(chip,
+				       "set quirk for FTU Effect Duration\n");
 			cval->min = 0x0000;
 			cval->max = 0x7f00;
 			cval->res = 0x0100;
···
 		}
 		if (strcmp(kctl->id.name, "Effect Volume") == 0 ||
 		    strcmp(kctl->id.name, "Effect Feedback Volume") == 0) {
-			snd_printk(KERN_INFO
-				"usb-audio: set quirks for FTU Effect Feedback/Volume\n");
+			usb_audio_info(chip,
+				       "set quirks for FTU Effect Feedback/Volume\n");
 			cval->min = 0x00;
 			cval->max = 0x7f;
 			break;
···
 	 */
 		if (!strcmp(kctl->id.name, "PCM Playback Volume") &&
 		    cval->min == -15616) {
-			snd_printk(KERN_INFO
+			usb_audio_info(chip,
 				 "set volume quirk for UDA1321/N101 chip\n");
 			cval->max = -256;
 		}
···
 
 	case USB_ID(0x046d, 0x09a4):
 		if (!strcmp(kctl->id.name, "Mic Capture Volume")) {
-			snd_printk(KERN_INFO
+			usb_audio_info(chip,
 				"set volume quirk for QuickCam E3500\n");
 			cval->min = 6080;
 			cval->max = 8768;
···
 	 * Proboly there is some logitech magic behind this number --fishor
 	 */
 		if (!strcmp(kctl->id.name, "Mic Capture Volume")) {
-			snd_printk(KERN_INFO
+			usb_audio_info(chip,
 				"set resolution quirk: cval->res = 384\n");
 			cval->res = 384;
 		}
···
 		}
 		if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 ||
 		    get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) {
-			snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n",
+			usb_audio_err(cval->mixer->chip,
+				      "%d:%d: cannot get min/max values for control %d (id %d)\n",
 				   cval->id, snd_usb_ctrl_intf(cval->mixer->chip), cval->control, cval->id);
 			return -EINVAL;
 		}
···
 
 	cval = kzalloc(sizeof(*cval), GFP_KERNEL);
 	if (! cval) {
-		snd_printk(KERN_ERR "cannot malloc kcontrol\n");
+		usb_audio_err(state->chip, "cannot malloc kcontrol\n");
 		return;
 	}
 	cval->mixer = state->mixer;
···
 		kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval);
 
 	if (! kctl) {
-		snd_printk(KERN_ERR "cannot malloc kcontrol\n");
+		usb_audio_err(state->chip, "cannot malloc kcontrol\n");
 		kfree(cval);
 		return;
 	}
···
 	 * devices. It will definitively catch all buggy Logitech devices.
 	 */
 	if (range > 384) {
-		snd_printk(KERN_WARNING "usb_audio: Warning! Unlikely big "
+		usb_audio_warn(state->chip, "Warning! Unlikely big "
 			   "volume range (=%u), cval->res is probably wrong.",
 			   range);
-		snd_printk(KERN_WARNING "usb_audio: [%d] FU [%s] ch = %d, "
+		usb_audio_warn(state->chip, "[%d] FU [%s] ch = %d, "
 			   "val = %d/%d/%d", cval->id,
 			   kctl->id.name, cval->channels,
 			   cval->min, cval->max, cval->res);
 	}
 
-	snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n",
+	usb_audio_dbg(state->chip, "[%d] FU [%s] ch = %d, val = %d/%d/%d\n",
 		    cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res);
 	snd_usb_mixer_add_control(state->mixer, kctl);
 }
···
 	if (state->mixer->protocol == UAC_VERSION_1) {
 		csize = hdr->bControlSize;
 		if (!csize) {
-			snd_printdd(KERN_ERR "usbaudio: unit %u: "
-				    "invalid bControlSize == 0\n", unitid);
+			usb_audio_dbg(state->chip,
+				      "unit %u: invalid bControlSize == 0\n",
+				      unitid);
 			return -EINVAL;
 		}
 		channels = (hdr->bLength - 7) / csize - 1;
 		bmaControls = hdr->bmaControls;
 		if (hdr->bLength < 7 + csize) {
-			snd_printk(KERN_ERR "usbaudio: unit %u: "
-				   "invalid UAC_FEATURE_UNIT descriptor\n",
-				   unitid);
+			usb_audio_err(state->chip,
+				      "unit %u: invalid UAC_FEATURE_UNIT descriptor\n",
+				      unitid);
 			return -EINVAL;
 		}
 	} else {
···
 		channels = (hdr->bLength - 6) / 4 - 1;
 		bmaControls = ftr->bmaControls;
 		if (hdr->bLength < 6 + csize) {
-			snd_printk(KERN_ERR "usbaudio: unit %u: "
-				   "invalid UAC_FEATURE_UNIT descriptor\n",
-				   unitid);
+			usb_audio_err(state->chip,
+				      "unit %u: invalid UAC_FEATURE_UNIT descriptor\n",
+				      unitid);
 			return -EINVAL;
 		}
 	}
···
 	/* master configuration quirks */
 	switch (state->chip->usb_id) {
 	case USB_ID(0x08bb, 0x2702):
-		snd_printk(KERN_INFO
-			   "usbmixer: master volume quirk for PCM2702 chip\n");
+		usb_audio_info(state->chip,
+			       "usbmixer: master volume quirk for PCM2702 chip\n");
 		/* disable non-functional volume control */
 		master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME);
 		break;
 	case USB_ID(0x1130, 0xf211):
-		snd_printk(KERN_INFO
-			   "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n");
+		usb_audio_info(state->chip,
+			       "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n");
 		/* disable non-functional volume control */
 		channels = 0;
 		break;
···
 
 	kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval);
 	if (! kctl) {
-		snd_printk(KERN_ERR "cannot malloc kcontrol\n");
+		usb_audio_err(state->chip, "cannot malloc kcontrol\n");
 		kfree(cval);
 		return;
 	}
···
 		len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1);
 	append_ctl_name(kctl, " Volume");
 
-	snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n",
+	usb_audio_dbg(state->chip, "[%d] MU [%s] ch = %d, val = %d/%d\n",
 		    cval->id, kctl->id.name, cval->channels, cval->min, cval->max);
 	snd_usb_mixer_add_control(state->mixer, kctl);
 }
···
 	int pin, ich, err;
 
 	if (desc->bLength < 11 || ! (input_pins = desc->bNrInPins) || ! (num_outs = uac_mixer_unit_bNrChannels(desc))) {
-		snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid);
+		usb_audio_err(state->chip, "invalid MIXER UNIT descriptor %d\n", unitid);
 		return -EINVAL;
 	}
 	/* no bmControls field (e.g. Maya44) -> ignore */
 	if (desc->bLength <= 10 + input_pins) {
-		snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid);
+		usb_audio_dbg(state->chip, "MU %d has no bmControls field\n", unitid);
 		return 0;
 	}
 
···
 
 	if (desc->bLength < 13 || desc->bLength < 13 + num_ins ||
 	    desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) {
-		snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid);
+		usb_audio_err(state->chip, "invalid %s descriptor (id %d)\n", name, unitid);
 		return -EINVAL;
 	}
 
···
 			continue;
 		cval = kzalloc(sizeof(*cval), GFP_KERNEL);
 		if (! cval) {
-			snd_printk(KERN_ERR "cannot malloc kcontrol\n");
+			usb_audio_err(state->chip, "cannot malloc kcontrol\n");
 			return -ENOMEM;
 		}
 		cval->mixer = state->mixer;
···
 
 		kctl = snd_ctl_new1(&mixer_procunit_ctl, cval);
 		if (! kctl) {
-			snd_printk(KERN_ERR "cannot malloc kcontrol\n");
+			usb_audio_err(state->chip, "cannot malloc kcontrol\n");
 			kfree(cval);
 			return -ENOMEM;
 		}
···
 		append_ctl_name(kctl, " ");
 		append_ctl_name(kctl, valinfo->suffix);
 
-		snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n",
+		usb_audio_dbg(state->chip,
+			"[%d] PU [%s] ch = %d, val = %d/%d\n",
 			    cval->id, kctl->id.name, cval->channels, cval->min, cval->max);
 		if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0)
 			return err;
···
 	char **namelist;
 
 	if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) {
-		snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid);
+		usb_audio_err(state->chip,
+			"invalid SELECTOR UNIT descriptor %d\n", unitid);
 		return -EINVAL;
 	}
 
···
 
 	cval = kzalloc(sizeof(*cval), GFP_KERNEL);
 	if (! cval) {
-		snd_printk(KERN_ERR "cannot malloc kcontrol\n");
+		usb_audio_err(state->chip, "cannot malloc kcontrol\n");
 		return -ENOMEM;
 	}
 	cval->mixer = state->mixer;
···
 
 	namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL);
 	if (! namelist) {
-		snd_printk(KERN_ERR "cannot malloc\n");
+		usb_audio_err(state->chip, "cannot malloc\n");
 		kfree(cval);
 		return -ENOMEM;
 	}
···
 		len = 0;
 		namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL);
 		if (! namelist[i]) {
-			snd_printk(KERN_ERR "cannot malloc\n");
+			usb_audio_err(state->chip, "cannot malloc\n");
 			while (i--)
 				kfree(namelist[i]);
 			kfree(namelist);
···
 
 	kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval);
 	if (! kctl) {
-		snd_printk(KERN_ERR "cannot malloc kcontrol\n");
+		usb_audio_err(state->chip, "cannot malloc kcontrol\n");
 		kfree(namelist);
 		kfree(cval);
 		return -ENOMEM;
···
 			append_ctl_name(kctl, " Playback Source");
 	}
 
-	snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n",
+	usb_audio_dbg(state->chip, "[%d] SU [%s] items = %d\n",
 		    cval->id, kctl->id.name, desc->bNrInPins);
 	if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0)
 		return err;
···
 
 	p1 = find_audio_control_unit(state, unitid);
 	if (!p1) {
-		snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid);
+		usb_audio_err(state->chip, "unit %d not found!\n", unitid);
 		return -EINVAL;
 	}
 
···
 	case UAC2_EXTENSION_UNIT_V2:
 		return parse_audio_extension_unit(state, unitid, p1);
 	default:
-		snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]);
+		usb_audio_err(state->chip,
+			"unit %u: unexpected type 0x%02x\n", unitid, p1[2]);
 		return -EINVAL;
 	}
 }
···
 	__u8 channel = value & 0xff;
 
 	if (channel >= MAX_CHANNELS) {
-		snd_printk(KERN_DEBUG "%s(): bogus channel number %d\n",
-				__func__, channel);
+		usb_audio_dbg(mixer->chip,
+			"%s(): bogus channel number %d\n",
+			__func__, channel);
 		return;
 	}
 
···
 			break;
 
 		default:
-			snd_printk(KERN_DEBUG "unknown attribute %d in interrupt\n",
-						attribute);
+			usb_audio_dbg(mixer->chip,
+				"unknown attribute %d in interrupt\n",
+				attribute);
 			break;
 		} /* switch */
 	}
···
 		for (status = urb->transfer_buffer;
 		     len >= sizeof(*status);
 		     len -= sizeof(*status), status++) {
-			snd_printd(KERN_DEBUG "status interrupt: %02x %02x\n",
+			dev_dbg(&urb->dev->dev, "status interrupt: %02x %02x\n",
 						status->bStatusType,
 						status->bOriginator);
 

sound/usb/mixer_quirks.c

···
 	up_read(&mixer->chip->shutdown_rwsem);
 
 	if (ret < 0) {
-		snd_printk(KERN_ERR
-			   "unable to issue vendor read request (ret = %d)", ret);
+		dev_err(&dev->dev,
+			"unable to issue vendor read request (ret = %d)", ret);
 		return ret;
 	}
 
···
 	up_read(&mixer->chip->shutdown_rwsem);
 
 	if (ret < 0) {
-		snd_printk(KERN_ERR
-			   "unable to issue vendor write request (ret = %d)", ret);
+		dev_err(&dev->dev,
+			"unable to issue vendor write request (ret = %d)", ret);
 		return ret;
 	}
 
···
 			snd_usb_mixer_notify_id(mixer, mixer->rc_cfg->mute_mixer_id);
 		break;
 	default:
-		snd_printd(KERN_DEBUG "memory change in unknown unit %d\n", unitid);
+		usb_audio_dbg(mixer->chip, "memory change in unknown unit %d\n", unitid);
 		break;
 	}
 }

sound/usb/pcm.c

···
 				   USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT,
 				   UAC_EP_CS_ATTR_PITCH_CONTROL << 8, ep,
 				   data, sizeof(data))) < 0) {
-		snd_printk(KERN_ERR "%d:%d:%d: cannot set enable PITCH\n",
-			   dev->devnum, iface, ep);
+		usb_audio_err(chip, "%d:%d: cannot set enable PITCH\n",
+			      iface, ep);
 		return err;
 	}
 
···
 				   USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_OUT,
 				   UAC2_EP_CS_PITCH << 8, 0,
 				   data, sizeof(data))) < 0) {
-		snd_printk(KERN_ERR "%d:%d:%d: cannot set enable PITCH (v2)\n",
-			   dev->devnum, iface, fmt->altsetting);
+		usb_audio_err(chip, "%d:%d: cannot set enable PITCH (v2)\n",
+			      iface, fmt->altsetting);
 		return err;
 	}
 
···
 	if (!test_and_set_bit(SUBSTREAM_FLAG_DATA_EP_STARTED, &subs->flags)) {
 		struct snd_usb_endpoint *ep = subs->data_endpoint;
 
-		snd_printdd(KERN_DEBUG "Starting data EP @%p\n", ep);
+		dev_dbg(&subs->dev->dev, "Starting data EP @%p\n", ep);
 
 		ep->data_subs = subs;
 		err = snd_usb_endpoint_start(ep, can_sleep);
···
 						subs->sync_endpoint->altsetting);
 			if (err < 0) {
 				clear_bit(SUBSTREAM_FLAG_SYNC_EP_STARTED, &subs->flags);
-				snd_printk(KERN_ERR
-					   "%d:%d:%d: cannot set interface (%d)\n",
-					   subs->dev->devnum,
+				dev_err(&subs->dev->dev,
+					   "%d:%d: cannot set interface (%d)\n",
 					   subs->sync_endpoint->iface,
 					   subs->sync_endpoint->altsetting, err);
 				return -EIO;
 			}
 		}
 
-		snd_printdd(KERN_DEBUG "Starting sync EP @%p\n", ep);
+		dev_dbg(&subs->dev->dev, "Starting sync EP @%p\n", ep);
 
 		ep->sync_slave = subs->data_endpoint;
 		err = snd_usb_endpoint_start(ep, can_sleep);
···
 	if ((get_endpoint(alts, 1)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC ||
 	    (get_endpoint(alts, 1)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE &&
 	     get_endpoint(alts, 1)->bSynchAddress != 0)) {
-		snd_printk(KERN_ERR "%d:%d:%d : invalid sync pipe. bmAttributes %02x, bLength %d, bSynchAddress %02x\n",
-			   dev->devnum, fmt->iface, fmt->altsetting,
+		dev_err(&dev->dev,
+			"%d:%d : invalid sync pipe. bmAttributes %02x, bLength %d, bSynchAddress %02x\n",
+			   fmt->iface, fmt->altsetting,
 			   get_endpoint(alts, 1)->bmAttributes,
 			   get_endpoint(alts, 1)->bLength,
 			   get_endpoint(alts, 1)->bSynchAddress);
···
 	if (get_endpoint(alts, 0)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE &&
 	    ((is_playback && ep != (unsigned int)(get_endpoint(alts, 0)->bSynchAddress | USB_DIR_IN)) ||
 	     (!is_playback && ep != (unsigned int)(get_endpoint(alts, 0)->bSynchAddress & ~USB_DIR_IN)))) {
-		snd_printk(KERN_ERR "%d:%d:%d : invalid sync pipe. is_playback %d, ep %02x, bSynchAddress %02x\n",
-			   dev->devnum, fmt->iface, fmt->altsetting,
+		dev_err(&dev->dev,
+			"%d:%d : invalid sync pipe. is_playback %d, ep %02x, bSynchAddress %02x\n",
+			   fmt->iface, fmt->altsetting,
 			   is_playback, ep, get_endpoint(alts, 0)->bSynchAddress);
 		return -EINVAL;
 	}
···
 	if (subs->interface >= 0 && subs->interface != fmt->iface) {
 		err = usb_set_interface(subs->dev, subs->interface, 0);
 		if (err < 0) {
-			snd_printk(KERN_ERR "%d:%d:%d: return to setting 0 failed (%d)\n",
-				dev->devnum, fmt->iface, fmt->altsetting, err);
+			dev_err(&dev->dev,
+				"%d:%d: return to setting 0 failed (%d)\n",
+				fmt->iface, fmt->altsetting, err);
 			return -EIO;
 		}
 		subs->interface = -1;
···
 	    subs->altset_idx != fmt->altset_idx) {
 		err = usb_set_interface(dev, fmt->iface, fmt->altsetting);
 		if (err < 0) {
-			snd_printk(KERN_ERR "%d:%d:%d: usb_set_interface failed (%d)\n",
-				   dev->devnum, fmt->iface, fmt->altsetting, err);
+			dev_err(&dev->dev,
+				"%d:%d: usb_set_interface failed (%d)\n",
+				fmt->iface, fmt->altsetting, err);
 			return -EIO;
 		}
-		snd_printdd(KERN_INFO "setting usb interface %d:%d\n",
-				fmt->iface, fmt->altsetting);
+		dev_dbg(&dev->dev, "setting usb interface %d:%d\n",
+			fmt->iface, fmt->altsetting);
 		subs->interface = fmt->iface;
 		subs->altset_idx = fmt->altset_idx;
 
···
  * - Requested PCM format is not supported.
  * - Requested sample rate is not supported.
  */
-static int match_endpoint_audioformats(struct audioformat *fp,
-	struct audioformat *match, int rate,
-	snd_pcm_format_t pcm_format)
+static int match_endpoint_audioformats(struct snd_usb_substream *subs,
+				       struct audioformat *fp,
+				       struct audioformat *match, int rate,
+				       snd_pcm_format_t pcm_format)
 {
 	int i;
 	int score = 0;
 
 	if (fp->channels < 1) {
-		snd_printdd("%s: (fmt @%p) no channels\n", __func__, fp);
+		dev_dbg(&subs->dev->dev,
+			"%s: (fmt @%p) no channels\n", __func__, fp);
 		return 0;
 	}
 
 	if (!(fp->formats & pcm_format_to_bits(pcm_format))) {
-		snd_printdd("%s: (fmt @%p) no match for format %d\n", __func__,
+		dev_dbg(&subs->dev->dev,
+			"%s: (fmt @%p) no match for format %d\n", __func__,
 			fp, pcm_format);
 		return 0;
 	}
···
 		}
 	}
 	if (!score) {
-		snd_printdd("%s: (fmt @%p) no match for rate %d\n", __func__,
+		dev_dbg(&subs->dev->dev,
+			"%s: (fmt @%p) no match for rate %d\n", __func__,
 			fp, rate);
 		return 0;
 	}
···
 	if (fp->channels == match->channels)
 		score++;
 
-	snd_printdd("%s: (fmt @%p) score %d\n", __func__, fp, score);
+	dev_dbg(&subs->dev->dev,
+		"%s: (fmt @%p) score %d\n", __func__, fp, score);
 
 	return score;
 }
···
 
 	/* Try to find the best matching audioformat. */
 	list_for_each_entry(fp, &sync_subs->fmt_list, list) {
-		int score = match_endpoint_audioformats(fp, subs->cur_audiofmt,
+		int score = match_endpoint_audioformats(subs,
+							fp, subs->cur_audiofmt,
 			subs->cur_rate, subs->pcm_format);
 
 		if (score > cur_score) {
···
 	}
 
 	if (unlikely(sync_fp == NULL)) {
-		snd_printk(KERN_ERR "%s: no valid audioformat for sync ep %x found\n",
+		dev_err(&subs->dev->dev,
+			"%s: no valid audioformat for sync ep %x found\n",
 			__func__, sync_subs->ep_num);
 		return -EINVAL;
 	}
···
 	if (sync_fp->channels != subs->channels) {
 		sync_period_bytes = (subs->period_bytes / subs->channels) *
 			sync_fp->channels;
-		snd_printdd("%s: adjusted sync ep period bytes (%d -> %d)\n",
+		dev_dbg(&subs->dev->dev,
+			"%s: adjusted sync ep period bytes (%d -> %d)\n",
 			__func__, subs->period_bytes, sync_period_bytes);
 	}
 
···
 
 	fmt = find_format(subs);
 	if (!fmt) {
-		snd_printd(KERN_DEBUG "cannot set format: format = %#x, rate = %d, channels = %d\n",
+		dev_dbg(&subs->dev->dev,
+			"cannot set format: format = %#x, rate = %d, channels = %d\n",
 			   subs->pcm_format, subs->cur_rate, subs->channels);
 		return -EINVAL;
 	}
···
 	int ret;
 
 	if (! subs->cur_audiofmt) {
-		snd_printk(KERN_ERR "usbaudio: no format is specified!\n");
+		dev_err(&subs->dev->dev, "no format is specified!\n");
 		return -ENXIO;
 	}
 
···
 	for (i = 0; i < urb->number_of_packets; i++) {
 		cp = (unsigned char *)urb->transfer_buffer + urb->iso_frame_desc[i].offset + subs->pkt_offset_adj;
 		if (urb->iso_frame_desc[i].status && printk_ratelimit()) {
-			snd_printdd(KERN_ERR "frame %d active: %d\n", i, urb->iso_frame_desc[i].status);
+			dev_dbg(&subs->dev->dev, "frame %d active: %d\n",
+				i, urb->iso_frame_desc[i].status);
 			// continue;
 		}
 		bytes = urb->iso_frame_desc[i].actual_length;
···
 		if (bytes % (runtime->sample_bits >> 3) != 0) {
 			int oldbytes = bytes;
 			bytes = frames * stride;
-			snd_printdd(KERN_ERR "Corrected urb data len. %d->%d\n",
+			dev_warn(&subs->dev->dev,
+				 "Corrected urb data len. %d->%d\n",
 							oldbytes, bytes);
 		}
 		/* update the current pointer */
···
 	 * on two reads of a counter updated every ms.
 	 */
 	if (abs(est_delay - subs->last_delay) * 1000 > runtime->rate * 2)
-		snd_printk(KERN_DEBUG "delay: estimated %d, actual %d\n",
+		dev_dbg(&subs->dev->dev,
+			"delay: estimated %d, actual %d\n",
 			est_delay, subs->last_delay);
 
 	if (!subs->running) {

sound/usb/quirks.c

···
 	altsd = get_iface_desc(alts);
 	err = snd_usb_parse_audio_interface(chip, altsd->bInterfaceNumber);
 	if (err < 0) {
-		snd_printk(KERN_ERR "cannot setup if %d: error %d\n",
+		usb_audio_err(chip, "cannot setup if %d: error %d\n",
 			   altsd->bInterfaceNumber, err);
 		return err;
 	}
···
 
 	fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL);
 	if (!fp) {
-		snd_printk(KERN_ERR "cannot memdup\n");
+		usb_audio_err(chip, "cannot memdup\n");
 		return -ENOMEM;
 	}
 	if (fp->nr_rates > MAX_NR_RATES) {
···
 		fp->rate_max = fp->rate_min = 96000;
 		break;
 	default:
-		snd_printk(KERN_ERR "unknown sample rate\n");
+		usb_audio_err(chip, "unknown sample rate\n");
 		kfree(fp);
 		return -ENXIO;
 	}
···
 	if (quirk->type < QUIRK_TYPE_COUNT) {
 		return quirk_funcs[quirk->type](chip, iface, driver, quirk);
 	} else {
-		snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type);
+		usb_audio_err(chip, "invalid quirk type %d\n", quirk->type);
 		return -ENXIO;
 	}
 }
···
 
 	if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD ||
 	    le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_NEW) {
-		snd_printdd("sending Extigy boot sequence...\n");
+		dev_dbg(&dev->dev, "sending Extigy boot sequence...\n");
 		/* Send message to force it to reconnect with full interface. */
 		err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev,0),
 				      0x10, 0x43, 0x0001, 0x000a, NULL, 0);
-		if (err < 0) snd_printdd("error sending boot message: %d\n", err);
+		if (err < 0)
+			dev_dbg(&dev->dev, "error sending boot message: %d\n", err);
 		err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
 				&dev->descriptor, sizeof(dev->descriptor));
 		config = dev->actconfig;
-		if (err < 0) snd_printdd("error usb_get_descriptor: %d\n", err);
+		if (err < 0)
+			dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err);
 		err = usb_reset_configuration(dev);
-		if (err < 0) snd_printdd("error usb_reset_configuration: %d\n", err);
-		snd_printdd("extigy_boot: new boot length = %d\n",
+		if (err < 0)
+			dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err);
+		dev_dbg(&dev->dev, "extigy_boot: new boot length = %d\n",
 			    le16_to_cpu(get_cfg_desc(config)->wTotalLength));
 		return -ENODEV; /* quit this anyway */
 	}
···
 	int err;
 
 	if (dev->actconfig->desc.bConfigurationValue == 1) {
-		snd_printk(KERN_INFO "usb-audio: "
+		dev_info(&dev->dev,
 			   "Fast Track Pro switching to config #2\n");
 		/* This function has to be available by the usb core module.
 		 * if it is not avialable the boot quirk has to be left out
···
 		 */
 		err = usb_driver_set_configuration(dev, 2);
 		if (err < 0)
-			snd_printdd("error usb_driver_set_configuration: %d\n",
-				    err);
+			dev_dbg(&dev->dev,
+				"error usb_driver_set_configuration: %d\n",
+				err);
 		/* Always return an error, so that we stop creating a device
 		   that will just be destroyed and recreated with a new
 		   configuration */
 		return -ENODEV;
 	} else
-		snd_printk(KERN_INFO "usb-audio: Fast Track Pro config OK\n");
+		dev_info(&dev->dev, "Fast Track Pro config OK\n");
 
 	return 0;
 }
···
 	fwsize = le16_to_cpu(get_cfg_desc(config)->wTotalLength);
 
 	if (fwsize != MBOX2_FIRMWARE_SIZE) {
-		snd_printk(KERN_ERR "usb-audio: Invalid firmware size=%d.\n", fwsize);
+		dev_err(&dev->dev, "Invalid firmware size=%d.\n", fwsize);
 		return -ENODEV;
 	}
 
-	snd_printd("usb-audio: Sending Digidesign Mbox 2 boot sequence...\n");
+	dev_dbg(&dev->dev, "Sending Digidesign Mbox 2 boot sequence...\n");
 
 	count = 0;
 	bootresponse[0] = MBOX2_BOOT_LOADING;
···
 			0x85, 0xc0, 0x0001, 0x0000, &bootresponse, 0x0012);
 		if (bootresponse[0] == MBOX2_BOOT_READY)
 			break;
-		snd_printd("usb-audio: device not ready, resending boot sequence...\n");
+		dev_dbg(&dev->dev, "device not ready, resending boot sequence...\n");
 		count++;
 	}
 
 	if (bootresponse[0] != MBOX2_BOOT_READY) {
-		snd_printk(KERN_ERR "usb-audio: Unknown bootresponse=%d, or timed out, ignoring device.\n", bootresponse[0]);
+		dev_err(&dev->dev, "Unknown bootresponse=%d, or timed out, ignoring device.\n", bootresponse[0]);
 		return -ENODEV;
 	}
 
-	snd_printdd("usb-audio: device initialised!\n");
+	dev_dbg(&dev->dev, "device initialised!\n");
 
 	err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
 		&dev->descriptor, sizeof(dev->descriptor));
 	config = dev->actconfig;
 	if (err < 0)
-		snd_printd("error usb_get_descriptor: %d\n", err);
+		dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err);
 
 	err = usb_reset_configuration(dev);
 	if (err < 0)
-		snd_printd("error usb_reset_configuration: %d\n", err);
-	snd_printdd("mbox2_boot: new boot length = %d\n",
+		dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err);
+	dev_dbg(&dev->dev, "mbox2_boot: new boot length = %d\n",
 		le16_to_cpu(get_cfg_desc(config)->wTotalLength));
 
 	mbox2_setup_48_24_magic(dev);
 
-	snd_printk(KERN_INFO "usb-audio: Digidesign Mbox 2: 24bit 48kHz");
+	dev_info(&dev->dev, "Digidesign Mbox 2: 24bit 48kHz");
 
 	return 0; /* Successful boot */
 }
···
 				return 1; /* skip this altsetting */
 		}
 	}
-	snd_printdd(KERN_INFO
+	usb_audio_dbg(chip,
 		    "using altsetting %d for interface %d config %d\n",
 		    altno, iface, chip->setup);
 	return 0; /* keep this altsetting */
···
 			return 1;
 	}
 
-	snd_printdd(KERN_INFO
+	usb_audio_dbg(chip,
 		    "using altsetting %d for interface %d config %d\n",
 		    altno, iface, chip->setup);
 	return 0; /* keep this altsetting */

sound/usb/stream.c

···
 
 	if (!csep || csep->bLength < 7 ||
 	    csep->bDescriptorSubtype != UAC_EP_GENERAL) {
-		snd_printk(KERN_WARNING "%d:%u:%d : no or invalid"
-			   " class specific endpoint descriptor\n",
-			   chip->dev->devnum, iface_no,
-			   altsd->bAlternateSetting);
+		usb_audio_warn(chip,
+			       "%u:%d : no or invalid class specific endpoint descriptor\n",
+			       iface_no, altsd->bAlternateSetting);
 		return 0;
 	}
 
···
 		/* get audio formats */
 		switch (protocol) {
 		default:
-			snd_printdd(KERN_WARNING "%d:%u:%d: unknown interface protocol %#02x, assuming v1\n",
-				    dev->devnum, iface_no, altno, protocol);
+			dev_dbg(&dev->dev, "%u:%d: unknown interface protocol %#02x, assuming v1\n",
+				iface_no, altno, protocol);
 			protocol = UAC_VERSION_1;
 			/* fall through */
 
···
 			struct uac_input_terminal_descriptor *iterm;
 
 			if (!as) {
-				snd_printk(KERN_ERR "%d:%u:%d : UAC_AS_GENERAL descriptor not found\n",
-					   dev->devnum, iface_no, altno);
+				dev_err(&dev->dev,
+					"%u:%d : UAC_AS_GENERAL descriptor not found\n",
+					iface_no, altno);
 				continue;
 			}
 
 			if (as->bLength < sizeof(*as)) {
-				snd_printk(KERN_ERR "%d:%u:%d : invalid UAC_AS_GENERAL desc\n",
-					   dev->devnum, iface_no, altno);
+				dev_err(&dev->dev,
+					"%u:%d : invalid UAC_AS_GENERAL desc\n",
+					iface_no, altno);
 				continue;
 			}
 
···
 				snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, UAC_AS_GENERAL);
 
 			if (!as) {
-				snd_printk(KERN_ERR "%d:%u:%d : UAC_AS_GENERAL descriptor not found\n",
-					   dev->devnum, iface_no, altno);
+				dev_err(&dev->dev,
+					"%u:%d : UAC_AS_GENERAL descriptor not found\n",
+					iface_no, altno);
 				continue;
 			}
 
 			if (as->bLength < sizeof(*as)) {
-				snd_printk(KERN_ERR "%d:%u:%d : invalid UAC_AS_GENERAL desc\n",
-					   dev->devnum, iface_no, altno);
+				dev_err(&dev->dev,
+					"%u:%d : invalid UAC_AS_GENERAL desc\n",
+					iface_no, altno);
 				continue;
 			}
 
···
 				break;
 			}
 
-			snd_printk(KERN_ERR "%d:%u:%d : bogus bTerminalLink %d\n",
-				   dev->devnum, iface_no, altno, as->bTerminalLink);
+			dev_err(&dev->dev,
+				"%u:%d : bogus bTerminalLink %d\n",
+				iface_no, altno, as->bTerminalLink);
 			continue;
 		}
 		}
···
 		/* get format type */
 		fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, UAC_FORMAT_TYPE);
 		if (!fmt) {
-			snd_printk(KERN_ERR "%d:%u:%d : no UAC_FORMAT_TYPE desc\n",
-				   dev->devnum, iface_no, altno);
+			dev_err(&dev->dev,
+				"%u:%d : no UAC_FORMAT_TYPE desc\n",
+				iface_no, altno);
 			continue;
 		}
 		if (((protocol == UAC_VERSION_1) && (fmt->bLength < 8)) ||
 		    ((protocol == UAC_VERSION_2) && (fmt->bLength < 6))) {
-			snd_printk(KERN_ERR "%d:%u:%d : invalid UAC_FORMAT_TYPE desc\n",
-				   dev->devnum, iface_no, altno);
+			dev_err(&dev->dev,
+				"%u:%d : invalid UAC_FORMAT_TYPE desc\n",
+				iface_no, altno);
 			continue;
 		}
 
···
 
 		fp = kzalloc(sizeof(*fp), GFP_KERNEL);
 		if (! fp) {
-			snd_printk(KERN_ERR "cannot malloc\n");
+			dev_err(&dev->dev, "cannot malloc\n");
 			return -ENOMEM;
 		}
 
···
 			chconfig = 0;
 		fp->chmap = convert_chmap(fp->channels, chconfig, protocol);
 
-		snd_printdd(KERN_INFO "%d:%u:%d: add audio endpoint %#x\n", dev->devnum, iface_no, altno, fp->endpoint);
+		dev_dbg(&dev->dev, "%u:%d: add audio endpoint %#x\n", iface_no, altno, fp->endpoint);
 		err = snd_usb_add_audio_stream(chip, stream, fp);
 		if (err < 0) {
 			kfree(fp->rate_table);

sound/usb/usbaudio.h

···
 	struct usb_host_interface *ctrl_intf;	/* the audio control interface */
 };
 
+#define usb_audio_err(chip, fmt, args...) \
+	dev_err(&(chip)->dev->dev, fmt, ##args)
+#define usb_audio_warn(chip, fmt, args...) \
+	dev_warn(&(chip)->dev->dev, fmt, ##args)
+#define usb_audio_info(chip, fmt, args...) \
+	dev_info(&(chip)->dev->dev, fmt, ##args)
+#define usb_audio_dbg(chip, fmt, args...) \
+	dev_dbg(&(chip)->dev->dev, fmt, ##args)
+
 /*
  * Information about devices with broken descriptors
  */