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| author | Takashi Iwai <tiwai@suse.de> | 2012-05-21 12:51:35 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-05-21 12:51:35 +0200 |
| commit | 382e6a859e6622de0aa62c01976ae8ebd90e986d (patch) | |
| tree | 2501c554c231c5d0fcda7ff2e6e055bf23134d6f /sound/core/pcm_native.c | |
| parent | 6de15b2a9330aeb5df9b66545f67c6c6ad2c045a (diff) | |
| parent | 97f8d3b6503082416898f893a442a78f8819c42a (diff) | |
Merge branch 'topic/misc' into for-linus
Diffstat (limited to 'sound/core/pcm_native.c')
| -rw-r--r-- | sound/core/pcm_native.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 3fe99e644eb8..53b5ada8f7c3 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -1360,7 +1360,14 @@ static int snd_pcm_prepare(struct snd_pcm_substream *substream, static int snd_pcm_pre_drain_init(struct snd_pcm_substream *substream, int state) { - substream->runtime->trigger_master = substream; + struct snd_pcm_runtime *runtime = substream->runtime; + switch (runtime->status->state) { + case SNDRV_PCM_STATE_OPEN: + case SNDRV_PCM_STATE_DISCONNECTED: + case SNDRV_PCM_STATE_SUSPENDED: + return -EBADFD; + } + runtime->trigger_master = substream; return 0; } @@ -1379,6 +1386,9 @@ static int snd_pcm_do_drain_init(struct snd_pcm_substream *substream, int state) case SNDRV_PCM_STATE_RUNNING: runtime->status->state = SNDRV_PCM_STATE_DRAINING; break; + case SNDRV_PCM_STATE_XRUN: + runtime->status->state = SNDRV_PCM_STATE_SETUP; + break; default: break; } |