sound fixes for 4.13-rc6

A collection of small fixes, mostly for regression fixes (sequencer
 kconfig and emu10k1 probe) and device-specific quirks (three for USB
 and one for HD-audio).  One significant change is a fix for races in
 ALSA sequencer core, which covers over the previous incomplete fix.
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Merge tag 'sound-4.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes, mostly for regression fixes (sequencer
  kconfig and emu10k1 probe) and device-specific quirks (three for USB
  and one for HD-audio).

  One significant change is a fix for races in ALSA sequencer core,
  which covers over the previous incomplete fix"

* tag 'sound-4.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: emu10k1: Fix forgotten user-copy conversion in init code
  ALSA: usb-audio: add DSD support for new Amanero PID
  ALSA: usb-audio: Add mute TLV for playback volumes on C-Media devices
  ALSA: usb-audio: Apply sample rate quirk to Sennheiser headset
  ALSA: seq: 2nd attempt at fixing race creating a queue
  ALSA: hda/realtek - Fix pincfg for Dell XPS 13 9370
  ALSA: seq: Fix CONFIG_SND_SEQ_MIDI dependency

sound/core/seq/Kconfig

@@ -47,10 +47,10 @@ config SND_SEQ_HRTIMER_DEFAULT
 	  timer.
 
 config SND_SEQ_MIDI_EVENT
-	def_tristate SND_RAWMIDI
+	tristate
 
 config SND_SEQ_MIDI
-	tristate
+	def_tristate SND_RAWMIDI
 	select SND_SEQ_MIDI_EVENT
 
 config SND_SEQ_MIDI_EMUL

sound/core/seq/seq_clientmgr.c

@@ -1502,16 +1502,11 @@ static int snd_seq_ioctl_unsubscribe_port(struct snd_seq_client *client,
 static int snd_seq_ioctl_create_queue(struct snd_seq_client *client, void *arg)
 {
 	struct snd_seq_queue_info *info = arg;
-	int result;
 	struct snd_seq_queue *q;
 
-	result = snd_seq_queue_alloc(client->number, info->locked, info->flags);
-	if (result < 0)
-		return result;
-
-	q = queueptr(result);
-	if (q == NULL)
-		return -EINVAL;
+	q = snd_seq_queue_alloc(client->number, info->locked, info->flags);
+	if (IS_ERR(q))
+		return PTR_ERR(q);
 
 	info->queue = q->queue;
 	info->locked = q->locked;
@@ -1521,7 +1516,7 @@ static int snd_seq_ioctl_create_queue(struct snd_seq_client *client, void *arg)
 	if (!info->name[0])
 		snprintf(info->name, sizeof(info->name), "Queue-%d", q->queue);
 	strlcpy(q->name, info->name, sizeof(q->name));
-	queuefree(q);
+	snd_use_lock_free(&q->use_lock);
 
 	return 0;
 }

sound/core/seq/seq_queue.c

@@ -184,22 +184,26 @@ void __exit snd_seq_queues_delete(void)
 static void queue_use(struct snd_seq_queue *queue, int client, int use);
 
 /* allocate a new queue -
- * return queue index value or negative value for error
+ * return pointer to new queue or ERR_PTR(-errno) for error
+ * The new queue's use_lock is set to 1. It is the caller's responsibility to
+ * call snd_use_lock_free(&q->use_lock).
  */
-int snd_seq_queue_alloc(int client, int locked, unsigned int info_flags)
+struct snd_seq_queue *snd_seq_queue_alloc(int client, int locked, unsigned int info_flags)
 {
 	struct snd_seq_queue *q;
 
 	q = queue_new(client, locked);
 	if (q == NULL)
-		return -ENOMEM;
+		return ERR_PTR(-ENOMEM);
 	q->info_flags = info_flags;
 	queue_use(q, client, 1);
+	snd_use_lock_use(&q->use_lock);
 	if (queue_list_add(q) < 0) {
+		snd_use_lock_free(&q->use_lock);
 		queue_delete(q);
-		return -ENOMEM;
+		return ERR_PTR(-ENOMEM);
 	}
-	return q->queue;
+	return q;
 }
 
 /* delete a queue - queue must be owned by the client */

sound/core/seq/seq_queue.h

@@ -71,7 +71,7 @@ void snd_seq_queues_delete(void);
 
 
 /* create new queue (constructor) */
-int snd_seq_queue_alloc(int client, int locked, unsigned int flags);
+struct snd_seq_queue *snd_seq_queue_alloc(int client, int locked, unsigned int flags);
 
 /* delete queue (destructor) */
 int snd_seq_queue_delete(int client, int queueid);

sound/pci/emu10k1/emufx.c

@@ -698,10 +698,18 @@ static int copy_gctl(struct snd_emu10k1 *emu,
 {
 	struct snd_emu10k1_fx8010_control_old_gpr __user *octl;
 
-	if (emu->support_tlv)
-		return copy_from_user(gctl, &_gctl[idx], sizeof(*gctl));
+	if (emu->support_tlv) {
+		if (in_kernel)
+			memcpy(gctl, (void *)&_gctl[idx], sizeof(*gctl));
+		else if (copy_from_user(gctl, &_gctl[idx], sizeof(*gctl)))
+			return -EFAULT;
+		return 0;
+	}
+
 	octl = (struct snd_emu10k1_fx8010_control_old_gpr __user *)_gctl;
-	if (copy_from_user(gctl, &octl[idx], sizeof(*octl)))
+	if (in_kernel)
+		memcpy(gctl, (void *)&octl[idx], sizeof(*octl));
+	else if (copy_from_user(gctl, &octl[idx], sizeof(*octl)))
 		return -EFAULT;
 	gctl->tlv = NULL;
 	return 0;

sound/pci/hda/patch_realtek.c

@@ -6647,7 +6647,6 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = {
 	SND_HDA_PIN_QUIRK(0x10ec0299, 0x1028, "Dell", ALC269_FIXUP_DELL4_MIC_NO_PRESENCE,
 		ALC225_STANDARD_PINS,
 		{0x12, 0xb7a60130},
-		{0x13, 0xb8a61140},
 		{0x17, 0x90170110}),
 	{}
 };

sound/usb/mixer.c

@@ -542,6 +542,8 @@ int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag,
 
 	if (size < sizeof(scale))
 		return -ENOMEM;
+	if (cval->min_mute)
+		scale[0] = SNDRV_CTL_TLVT_DB_MINMAX_MUTE;
 	scale[2] = cval->dBmin;
 	scale[3] = cval->dBmax;
 	if (copy_to_user(_tlv, scale, sizeof(scale)))

sound/usb/mixer.h

@@ -64,6 +64,7 @@ struct usb_mixer_elem_info {
 	int cached;
 	int cache_val[MAX_CHANNELS];
 	u8 initialized;
+	u8 min_mute;
 	void *private_data;
 };
 

sound/usb/mixer_quirks.c

@@ -1878,6 +1878,12 @@ void snd_usb_mixer_fu_apply_quirk(struct usb_mixer_interface *mixer,
 		if (unitid == 7 && cval->control == UAC_FU_VOLUME)
 			snd_dragonfly_quirk_db_scale(mixer, cval, kctl);
 		break;
+	/* lowest playback value is muted on C-Media devices */
+	case USB_ID(0x0d8c, 0x000c):
+	case USB_ID(0x0d8c, 0x0014):
+		if (strstr(kctl->id.name, "Playback"))
+			cval->min_mute = 1;
+		break;
 	}
 }
 

sound/usb/quirks.c

@@ -1142,6 +1142,7 @@ bool snd_usb_get_sample_rate_quirk(struct snd_usb_audio *chip)
 	case USB_ID(0x0556, 0x0014): /* Phoenix Audio TMX320VC */
 	case USB_ID(0x05A3, 0x9420): /* ELP HD USB Camera */
 	case USB_ID(0x074D, 0x3553): /* Outlaw RR2150 (Micronas UAC3553B) */
+	case USB_ID(0x1395, 0x740a): /* Sennheiser DECT */
 	case USB_ID(0x1901, 0x0191): /* GE B850V3 CP2114 audio interface */
 	case USB_ID(0x1de7, 0x0013): /* Phoenix Audio MT202exe */
 	case USB_ID(0x1de7, 0x0014): /* Phoenix Audio TMX320 */
@@ -1374,6 +1375,10 @@ u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
 			}
 		}
 		break;
+	case USB_ID(0x16d0, 0x0a23):
+		if (fp->altsetting == 2)
+			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
+		break;
 
 	default:
 		break;