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| author | Takashi Iwai <tiwai@suse.de> | 2022-03-15 17:41:58 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-28 08:41:43 +0200 |
| commit | 2a97f0a4fd3d6e914dd3d76585f1ec2a651f4992 (patch) | |
| tree | 9c8160a4e111e7a350264f26f69b97b6f974b128 | |
| parent | d14193111c436fc5de33206c67c7afd45c730099 (diff) | |
| download | linux-stable-2a97f0a4fd3d6e914dd3d76585f1ec2a651f4992.tar.gz linux-stable-2a97f0a4fd3d6e914dd3d76585f1ec2a651f4992.tar.bz2 linux-stable-2a97f0a4fd3d6e914dd3d76585f1ec2a651f4992.zip | |
ASoC: sti: Fix deadlock via snd_pcm_stop_xrun() call
commit 455c5653f50e10b4f460ef24e99f0044fbe3401c upstream.
This is essentially a revert of the commit dc865fb9e7c2 ("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: dc865fb9e7c2 ("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>
| -rw-r--r-- | sound/soc/sti/uniperif_player.c | 6 | ||||
| -rw-r--r-- | sound/soc/sti/uniperif_reader.c | 2 |
2 files changed, 4 insertions, 4 deletions
diff --git a/sound/soc/sti/uniperif_player.c b/sound/soc/sti/uniperif_player.c index 4b0beb372cd9..908f13623f8c 100644 --- a/sound/soc/sti/uniperif_player.c +++ b/sound/soc/sti/uniperif_player.c @@ -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; } diff --git a/sound/soc/sti/uniperif_reader.c b/sound/soc/sti/uniperif_reader.c index 7b63d35ef428..ee0055e60852 100644 --- a/sound/soc/sti/uniperif_reader.c +++ b/sound/soc/sti/uniperif_reader.c @@ -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; } |