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ASoC: sti: Fix deadlock via snd_pcm_stop_xrun() call 

commit 455c5653f5 upstream.

This is essentially a revert of the commit dc865fb9e7 ("ASoC: sti:
Use snd_pcm_stop_xrun() helper"), which converted the manual
snd_pcm_stop() calls with snd_pcm_stop_xrun().

The commit above introduced a deadlock as snd_pcm_stop_xrun() itself
takes the PCM stream lock while the caller already holds it.  Since
the conversion was done only for consistency reason and the open-call
with snd_pcm_stop() to the XRUN state is a correct usage, let's revert
the commit back as the fix.

Fixes: dc865fb9e7 ("ASoC: sti: Use snd_pcm_stop_xrun() helper")
Reported-by: Daniel Palmer <daniel@0x0f.com>
Cc: Arnaud POULIQUEN <arnaud.pouliquen@st.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220315091319.3351522-1-daniel@0x0f.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Link: https://lore.kernel.org/r/20220315164158.19804-1-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Takashi Iwai 2022-03-15 17:41:58 +01:00 committed by Greg Kroah-Hartman
parent ef1a6fe356
commit 39504539ca
2 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sound/soc/sti/uniperif_player.c
View File

@ -91,7 +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_stop_xrun(player->substream);
snd_pcm_stop(player->substream, SNDRV_PCM_STATE_XRUN);
}
ret = IRQ_HANDLED;
@ -105,7 +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_stop_xrun(player->substream);
snd_pcm_stop(player->substream, SNDRV_PCM_STATE_XRUN);
ret = IRQ_HANDLED;
}
@ -138,7 +138,7 @@ 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_stop_xrun(player->substream);
snd_pcm_stop(player->substream, SNDRV_PCM_STATE_XRUN);
ret = IRQ_HANDLED;
}

2
sound/soc/sti/uniperif_reader.c
View File

@ -65,7 +65,7 @@ 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_stop_xrun(reader->substream);
snd_pcm_stop(reader->substream, SNDRV_PCM_STATE_XRUN);
ret = IRQ_HANDLED;
}