Merge branch 'for-linus' into for-next

... for migrating the core changes for USB-audio disconnection fixes

1 files changed, 11 insertions, 2 deletions

diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index f2991940b27..030102caeee 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -1086,11 +1086,19 @@ 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 +1118,7 @@ static int snd_pcm_dev_disconnect(struct snd_device *device)
 			pcm->streams[cidx].chmap_kctl = NULL;
 		}
 	}
+	mutex_unlock(&pcm->open_mutex);
  unlock:
 	mutex_unlock(&register_mutex);
 	return 0;