Merge tag 'sound-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Since we got a bonus week, let me try to screw a few pending fixes.

  A slightly large fix is the locking fix in ASoC STI driver, but it's
  pretty board-specific, and the risk is fairly low.

  All the rest are small / trivial fixes, mostly marked as stable, for
  ALSA sequencer core, ASoC topology, ASoC Intel bytcr and Firewire
  drivers"

* tag 'sound-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ASoC: intel: Fix PM and non-atomic crash in bytcr drivers
  ALSA: firewire-lib: fix inappropriate assignment between signed/unsigned type
  ALSA: seq: Don't break snd_use_lock_sync() loop by timeout
  ASoC: topology: Fix to store enum text values
  ASoC: STI: Fix null ptr deference in IRQ handler
  ALSA: oxfw: fix regression to handle Stanton SCS.1m/1d

Author: torvalds

sound/core/seq/seq_lock.c

@@ -28,19 +28,16 @@
 /* wait until all locks are released */
 void snd_use_lock_sync_helper(snd_use_lock_t *lockp, const char *file, int line)
 {
-	int max_count = 5 * HZ;
+	int warn_count = 5 * HZ;
 
 	if (atomic_read(lockp) < 0) {
 		pr_warn("ALSA: seq_lock: lock trouble [counter = %d] in %s:%d\n", atomic_read(lockp), file, line);
 		return;
 	}
 	while (atomic_read(lockp) > 0) {
-		if (max_count == 0) {
-			pr_warn("ALSA: seq_lock: timeout [%d left] in %s:%d\n", atomic_read(lockp), file, line);
-			break;
-		}
+		if (warn_count-- == 0)
+			pr_warn("ALSA: seq_lock: waiting [%d left] in %s:%d\n", atomic_read(lockp), file, line);
 		schedule_timeout_uninterruptible(1);
-		max_count--;
 	}
 }
 

sound/firewire/lib.h

@@ -45,7 +45,7 @@ struct snd_fw_async_midi_port {
 
 	struct snd_rawmidi_substream *substream;
 	snd_fw_async_midi_port_fill fill;
-	unsigned int consume_bytes;
+	int consume_bytes;
 };
 
 int snd_fw_async_midi_port_init(struct snd_fw_async_midi_port *port,

sound/firewire/oxfw/oxfw.c

@@ -227,11 +227,11 @@ static void do_registration(struct work_struct *work)
 	if (err < 0)
 		goto error;
 
-	err = detect_quirks(oxfw);
+	err = snd_oxfw_stream_discover(oxfw);
 	if (err < 0)
 		goto error;
 
-	err = snd_oxfw_stream_discover(oxfw);
+	err = detect_quirks(oxfw);
 	if (err < 0)
 		goto error;
 

sound/soc/intel/boards/bytcr_rt5640.c

@@ -621,7 +621,7 @@ static struct snd_soc_dai_link byt_rt5640_dais[] = {
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.codec_name = "snd-soc-dummy",
 		.platform_name = "sst-mfld-platform",
-		.ignore_suspend = 1,
+		.nonatomic = true,
 		.dynamic = 1,
 		.dpcm_playback = 1,
 		.dpcm_capture = 1,
@@ -634,7 +634,6 @@ static struct snd_soc_dai_link byt_rt5640_dais[] = {
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.codec_name = "snd-soc-dummy",
 		.platform_name = "sst-mfld-platform",
-		.ignore_suspend = 1,
 		.nonatomic = true,
 		.dynamic = 1,
 		.dpcm_playback = 1,
@@ -661,6 +660,7 @@ static struct snd_soc_dai_link byt_rt5640_dais[] = {
 						| SND_SOC_DAIFMT_CBS_CFS,
 		.be_hw_params_fixup = byt_rt5640_codec_fixup,
 		.ignore_suspend = 1,
+		.nonatomic = true,
 		.dpcm_playback = 1,
 		.dpcm_capture = 1,
 		.init = byt_rt5640_init,

sound/soc/intel/boards/bytcr_rt5651.c

@@ -235,7 +235,6 @@ static struct snd_soc_dai_link byt_rt5651_dais[] = {
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.codec_name = "snd-soc-dummy",
 		.platform_name = "sst-mfld-platform",
-		.ignore_suspend = 1,
 		.nonatomic = true,
 		.dynamic = 1,
 		.dpcm_playback = 1,
@@ -249,7 +248,6 @@ static struct snd_soc_dai_link byt_rt5651_dais[] = {
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.codec_name = "snd-soc-dummy",
 		.platform_name = "sst-mfld-platform",
-		.ignore_suspend = 1,
 		.nonatomic = true,
 		.dynamic = 1,
 		.dpcm_playback = 1,

sound/soc/soc-topology.c

@@ -933,6 +933,7 @@ static int soc_tplg_denum_create_texts(struct soc_enum *se,
 		}
 	}
 
+	se->texts = (const char * const *)se->dobj.control.dtexts;
 	return 0;
 
 err:

sound/soc/sti/uniperif.h

@@ -1299,6 +1299,7 @@ struct uniperif {
 	int ver; /* IP version, used by register access macros */
 	struct regmap_field *clk_sel;
 	struct regmap_field *valid_sel;
+	spinlock_t irq_lock; /* use to prevent race condition with IRQ */
 
 	/* capabilities */
 	const struct snd_pcm_hardware *hw;

sound/soc/sti/uniperif_player.c

@@ -65,10 +65,13 @@ static irqreturn_t uni_player_irq_handler(int irq, void *dev_id)
 	unsigned int status;
 	unsigned int tmp;
 
-	if (player->state == UNIPERIF_STATE_STOPPED) {
-		/* Unexpected IRQ: do nothing */
-		return IRQ_NONE;
-	}
+	spin_lock(&player->irq_lock);
+	if (!player->substream)
+		goto irq_spin_unlock;
+
+	snd_pcm_stream_lock(player->substream);
+	if (player->state == UNIPERIF_STATE_STOPPED)
+		goto stream_unlock;
 
 	/* Get interrupt status & clear them immediately */
 	status = GET_UNIPERIF_ITS(player);
@@ -88,9 +91,7 @@ static irqreturn_t uni_player_irq_handler(int irq, void *dev_id)
 			SET_UNIPERIF_ITM_BCLR_FIFO_ERROR(player);
 
 			/* Stop the player */
-			snd_pcm_stream_lock(player->substream);
 			snd_pcm_stop(player->substream, SNDRV_PCM_STATE_XRUN);
-			snd_pcm_stream_unlock(player->substream);
 		}
 
 		ret = IRQ_HANDLED;
@@ -104,9 +105,7 @@ static irqreturn_t uni_player_irq_handler(int irq, void *dev_id)
 		SET_UNIPERIF_ITM_BCLR_DMA_ERROR(player);
 
 		/* Stop the player */
-		snd_pcm_stream_lock(player->substream);
 		snd_pcm_stop(player->substream, SNDRV_PCM_STATE_XRUN);
-		snd_pcm_stream_unlock(player->substream);
 
 		ret = IRQ_HANDLED;
 	}
@@ -116,7 +115,8 @@ static irqreturn_t uni_player_irq_handler(int irq, void *dev_id)
 		if (!player->underflow_enabled) {
 			dev_err(player->dev,
 				"unexpected Underflow recovering\n");
-			return -EPERM;
+			ret = -EPERM;
+			goto stream_unlock;
 		}
 		/* Read the underflow recovery duration */
 		tmp = GET_UNIPERIF_STATUS_1_UNDERFLOW_DURATION(player);
@@ -138,13 +138,16 @@ static irqreturn_t uni_player_irq_handler(int irq, void *dev_id)
 		dev_err(player->dev, "Underflow recovery failed\n");
 
 		/* Stop the player */
-		snd_pcm_stream_lock(player->substream);
 		snd_pcm_stop(player->substream, SNDRV_PCM_STATE_XRUN);
-		snd_pcm_stream_unlock(player->substream);
 
 		ret = IRQ_HANDLED;
 	}
 
+stream_unlock:
+	snd_pcm_stream_unlock(player->substream);
+irq_spin_unlock:
+	spin_unlock(&player->irq_lock);
+
 	return ret;
 }
 
@@ -588,6 +591,7 @@ static int uni_player_ctl_iec958_put(struct snd_kcontrol *kcontrol,
 	struct sti_uniperiph_data *priv = snd_soc_dai_get_drvdata(dai);
 	struct uniperif *player = priv->dai_data.uni;
 	struct snd_aes_iec958 *iec958 =  &player->stream_settings.iec958;
+	unsigned long flags;
 
 	mutex_lock(&player->ctrl_lock);
 	iec958->status[0] = ucontrol->value.iec958.status[0];
@@ -596,12 +600,14 @@ static int uni_player_ctl_iec958_put(struct snd_kcontrol *kcontrol,
 	iec958->status[3] = ucontrol->value.iec958.status[3];
 	mutex_unlock(&player->ctrl_lock);
 
+	spin_lock_irqsave(&player->irq_lock, flags);
 	if (player->substream && player->substream->runtime)
 		uni_player_set_channel_status(player,
 					      player->substream->runtime);
 	else
 		uni_player_set_channel_status(player, NULL);
 
+	spin_unlock_irqrestore(&player->irq_lock, flags);
 	return 0;
 }
 
@@ -686,9 +692,12 @@ static int uni_player_startup(struct snd_pcm_substream *substream,
 {
 	struct sti_uniperiph_data *priv = snd_soc_dai_get_drvdata(dai);
 	struct uniperif *player = priv->dai_data.uni;
+	unsigned long flags;
 	int ret;
 
+	spin_lock_irqsave(&player->irq_lock, flags);
 	player->substream = substream;
+	spin_unlock_irqrestore(&player->irq_lock, flags);
 
 	player->clk_adj = 0;
 
@@ -986,12 +995,15 @@ static void uni_player_shutdown(struct snd_pcm_substream *substream,
 {
 	struct sti_uniperiph_data *priv = snd_soc_dai_get_drvdata(dai);
 	struct uniperif *player = priv->dai_data.uni;
+	unsigned long flags;
 
+	spin_lock_irqsave(&player->irq_lock, flags);
 	if (player->state != UNIPERIF_STATE_STOPPED)
 		/* Stop the player */
 		uni_player_stop(player);
 
 	player->substream = NULL;
+	spin_unlock_irqrestore(&player->irq_lock, flags);
 }
 
 static int uni_player_parse_dt_audio_glue(struct platform_device *pdev,
@@ -1096,6 +1108,7 @@ int uni_player_init(struct platform_device *pdev,
 	}
 
 	mutex_init(&player->ctrl_lock);
+	spin_lock_init(&player->irq_lock);
 
 	/* Ensure that disabled by default */
 	SET_UNIPERIF_CONFIG_BACK_STALL_REQ_DISABLE(player);

sound/soc/sti/uniperif_reader.c

@@ -46,10 +46,15 @@ static irqreturn_t uni_reader_irq_handler(int irq, void *dev_id)
 	struct uniperif *reader = dev_id;
 	unsigned int status;
 
+	spin_lock(&reader->irq_lock);
+	if (!reader->substream)
+		goto irq_spin_unlock;
+
+	snd_pcm_stream_lock(reader->substream);
 	if (reader->state == UNIPERIF_STATE_STOPPED) {
 		/* Unexpected IRQ: do nothing */
 		dev_warn(reader->dev, "unexpected IRQ\n");
-		return IRQ_HANDLED;
+		goto stream_unlock;
 	}
 
 	/* Get interrupt status & clear them immediately */
@@ -60,13 +65,16 @@ static irqreturn_t uni_reader_irq_handler(int irq, void *dev_id)
 	if (unlikely(status & UNIPERIF_ITS_FIFO_ERROR_MASK(reader))) {
 		dev_err(reader->dev, "FIFO error detected\n");
 
-		snd_pcm_stream_lock(reader->substream);
 		snd_pcm_stop(reader->substream, SNDRV_PCM_STATE_XRUN);
-		snd_pcm_stream_unlock(reader->substream);
 
-		return IRQ_HANDLED;
+		ret = IRQ_HANDLED;
 	}
 
+stream_unlock:
+	snd_pcm_stream_unlock(reader->substream);
+irq_spin_unlock:
+	spin_unlock(&reader->irq_lock);
+
 	return ret;
 }
 
@@ -347,9 +355,12 @@ static int uni_reader_startup(struct snd_pcm_substream *substream,
 {
 	struct sti_uniperiph_data *priv = snd_soc_dai_get_drvdata(dai);
 	struct uniperif *reader = priv->dai_data.uni;
+	unsigned long flags;
 	int ret;
 
+	spin_lock_irqsave(&reader->irq_lock, flags);
 	reader->substream = substream;
+	spin_unlock_irqrestore(&reader->irq_lock, flags);
 
 	if (!UNIPERIF_TYPE_IS_TDM(reader))
 		return 0;
@@ -375,12 +386,15 @@ static void uni_reader_shutdown(struct snd_pcm_substream *substream,
 {
 	struct sti_uniperiph_data *priv = snd_soc_dai_get_drvdata(dai);
 	struct uniperif *reader = priv->dai_data.uni;
+	unsigned long flags;
 
+	spin_lock_irqsave(&reader->irq_lock, flags);
 	if (reader->state != UNIPERIF_STATE_STOPPED) {
 		/* Stop the reader */
 		uni_reader_stop(reader);
 	}
 	reader->substream = NULL;
+	spin_unlock_irqrestore(&reader->irq_lock, flags);
 }
 
 static const struct snd_soc_dai_ops uni_reader_dai_ops = {
@@ -415,6 +429,8 @@ int uni_reader_init(struct platform_device *pdev,
 		return -EBUSY;
 	}
 
+	spin_lock_init(&reader->irq_lock);
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(uni_reader_init);