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authorTakashi Iwai <tiwai@suse.de>2021-02-06 21:36:55 +0100
committerTakashi Iwai <tiwai@suse.de>2021-02-08 16:00:49 +0100
commit700cb70730777c159a988e01daa93f20a1ae9b58 (patch)
treed4d0657bc5af6ebb014030a45351196ccf1c3f3d /sound
parent2c87c1a49c9d113a9f3e8e951d7d64be5ff50ac1 (diff)
ALSA: pcm: Don't call sync_stop if it hasn't been stopped
The PCM stop operation sets the stop_operating flag for indicating the sync_stop post-process. This flag is, however, set unconditionally even if the PCM trigger weren't issued. This may lead to inconsistency in the driver side. Correct the code to set stop_operating flag only after the trigger STOP is actually called. Fixes: 1e850beea278 ("ALSA: pcm: Add the support for sync-stop operation") Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210206203656.15959-4-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/core/pcm_native.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index cbbdb75c66ea..0ae2475465ab 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -1421,8 +1421,10 @@ static int snd_pcm_do_stop(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
if (substream->runtime->trigger_master == substream &&
- snd_pcm_running(substream))
+ snd_pcm_running(substream)) {
substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_STOP);
+ substream->runtime->stop_operating = true;
+ }
return 0; /* unconditonally stop all substreams */
}
@@ -1435,7 +1437,6 @@ static void snd_pcm_post_stop(struct snd_pcm_substream *substream,
runtime->status->state = state;
snd_pcm_timer_notify(substream, SNDRV_TIMER_EVENT_MSTOP);
}
- runtime->stop_operating = true;
wake_up(&runtime->sleep);
wake_up(&runtime->tsleep);
}