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;
}
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;
}