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ALSA: pcm: Set missing stop_operating flag at undoing trigger start 

When a PCM trigger-start fails at snd_pcm_do_start(), PCM core tries
to undo the action at snd_pcm_undo_start() by issuing the trigger STOP
manually.  At that point, we forgot to set the stop_operating flag,
hence the sync-stop won't be issued at the next prepare or other
calls.

This patch adds the missing stop_operating flag at
snd_pcm_undo_start().

Fixes: 1e850beea2 ("ALSA: pcm: Add the support for sync-stop operation")
Link: https://lore.kernel.org/r/b4e71631-4a94-613-27b2-fb595792630@carlh.net
Link: https://lore.kernel.org/r/20221205132124.11585-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2022-12-05 14:21:22 +01:00
parent 7d721baea1
commit 5c8cc93b06
1 changed files with 3 additions and 1 deletions
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4
sound/core/pcm_native.c
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@ -1432,8 +1432,10 @@ static int snd_pcm_do_start(struct snd_pcm_substream *substream,
static void snd_pcm_undo_start(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
if (substream->runtime->trigger_master == substream)
if (substream->runtime->trigger_master == substream) {
substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_STOP);
substream->runtime->stop_operating = true;
}
}
static void snd_pcm_post_start(struct snd_pcm_substream *substream,