diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index f174685a7f3..58d377c2785 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -1216,8 +1216,11 @@ static int snd_pcm_dev_disconnect(struct snd_device *device)
 	list_del_init(&pcm->list);
 	for (cidx = 0; cidx < 2; cidx++)
 		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)
-			if (substream->runtime)
+			if (substream->runtime) {
 				substream->runtime->status->state = SNDRV_PCM_STATE_DISCONNECTED;
+                                wake_up(&substream->runtime->sleep);
+                                wake_up(&substream->runtime->tsleep);
+                        }
 	list_for_each_entry(notify, &snd_pcm_notify_list, list) {
 		notify->n_disconnect(pcm);
 	}