diff options
Diffstat (limited to 'sound/core/pcm.c')
| -rw-r--r-- | sound/core/pcm.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/sound/core/pcm.c b/sound/core/pcm.c index f2991940b271..61798f85d030 100644 --- a/sound/core/pcm.c +++ b/sound/core/pcm.c @@ -981,8 +981,7 @@ void snd_pcm_detach_substream(struct snd_pcm_substream *substream) PAGE_ALIGN(sizeof(struct snd_pcm_mmap_control))); kfree(runtime->hw_constraints.rules); #ifdef CONFIG_SND_PCM_XRUN_DEBUG - if (runtime->hwptr_log) - kfree(runtime->hwptr_log); + kfree(runtime->hwptr_log); #endif kfree(runtime); substream->runtime = NULL; @@ -1086,11 +1085,19 @@ static int snd_pcm_dev_disconnect(struct snd_device *device) if (list_empty(&pcm->list)) goto unlock; + mutex_lock(&pcm->open_mutex); + wake_up(&pcm->open_wait); list_del_init(&pcm->list); for (cidx = 0; cidx < 2; cidx++) - for (substream = pcm->streams[cidx].substream; substream; substream = substream->next) - if (substream->runtime) + for (substream = pcm->streams[cidx].substream; substream; substream = substream->next) { + snd_pcm_stream_lock_irq(substream); + if (substream->runtime) { substream->runtime->status->state = SNDRV_PCM_STATE_DISCONNECTED; + wake_up(&substream->runtime->sleep); + wake_up(&substream->runtime->tsleep); + } + snd_pcm_stream_unlock_irq(substream); + } list_for_each_entry(notify, &snd_pcm_notify_list, list) { notify->n_disconnect(pcm); } @@ -1110,6 +1117,7 @@ static int snd_pcm_dev_disconnect(struct snd_device *device) pcm->streams[cidx].chmap_kctl = NULL; } } + mutex_unlock(&pcm->open_mutex); unlock: mutex_unlock(®ister_mutex); return 0; |