diff --git a/sound/core/init.c b/sound/core/init.c index f8dfc8d7010e..d97b8af897ee 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -523,6 +523,14 @@ void snd_card_disconnect(struct snd_card *card) } spin_unlock(&card->files_lock); +#ifdef CONFIG_PM + /* wake up sleepers here before other callbacks for avoiding potential + * deadlocks with other locks (e.g. in kctls); + * then this notifies the shutdown and sleepers would abort immediately + */ + wake_up_all(&card->power_sleep); +#endif + /* notify all connected devices about disconnection */ /* at this point, they cannot respond to any calls except release() */ @@ -550,7 +558,6 @@ void snd_card_disconnect(struct snd_card *card) mutex_unlock(&snd_card_mutex); #ifdef CONFIG_PM - wake_up(&card->power_sleep); snd_power_sync_ref(card); #endif }