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

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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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Takashi Iwai
2014-12-18 10:02:41 +01:00
committed by Greg Kroah-Hartman
parent 125c50411b
commit 0bfa6e5b16
1 changed files with 2 additions and 0 deletions
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sound/core/pcm_native.c
+2
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@@ -1404,6 +1404,8 @@ 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: