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lineage_android_kernel_samsung_jf
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ALSA: pcm: Don't leave PREPARED state after draining 

commit 70372a7566b5e552dbe48abdac08c275081d8558 upstream.

When a PCM draining is performed to an empty stream that has been
already in PREPARED state, the current code just ignores and leaves as
it is, although the drain is supposed to set all such streams to SETUP
state.  This patch covers that overlooked case.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Zefan Li <lizefan@huawei.com>
This commit is contained in:
Takashi Iwai 2014-12-18 10:02:41 +01:00 committed by Zefan Li
parent 1df722f5ec
commit 7ea0e7edc3
1 changed files with 2 additions and 0 deletions
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2
sound/core/pcm_native.c
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@ -1382,6 +1382,8 @@ static int snd_pcm_do_drain_init(struct snd_pcm_substream *substream, int state)
if (! snd_pcm_playback_empty(substream)) {
snd_pcm_do_start(substream, SNDRV_PCM_STATE_DRAINING);
snd_pcm_post_start(substream, SNDRV_PCM_STATE_DRAINING);
} else {
runtime->status->state = SNDRV_PCM_STATE_SETUP;
}
break;
case SNDRV_PCM_STATE_RUNNING: