Upgrade to 4.4.50-rt62
[kvmfornfv.git] / kernel / sound / core / control.c
index a85d455..b4fe9b0 100644 (file)
@@ -160,6 +160,8 @@ void snd_ctl_notify(struct snd_card *card, unsigned int mask,
        
        if (snd_BUG_ON(!card || !id))
                return;
+       if (card->shutdown)
+               return;
        read_lock(&card->ctl_files_rwlock);
 #if IS_ENABLED(CONFIG_SND_MIXER_OSS)
        card->mixer_oss_change_count++;