ALSA: hda_intel: Digital PC Beep - delay input device unregistration

The massive register/unregister calls for input device layer might be
overkill. Delay unregister call by one HZ as workaround.

Also, as benefit, beep->enabled variable is changed immediately now
(not from workqueue).

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 2 insertions, 1 deletions

diff --git a/sound/pci/hda/hda_beep.h b/sound/pci/hda/hda_beep.h
index 68465f679d8c..53eba8d8414d 100644
--- a/sound/pci/hda/hda_beep.h
+++ b/sound/pci/hda/hda_beep.h
@@ -34,7 +34,8 @@ struct hda_beep {
         unsigned int enabled:1;
         unsigned int request_enable:1;
         unsigned int linear_tone:1;     /* linear tone for IDT/STAC codec */
-        struct work_struct register_work; /* scheduled task for beep event */
+        struct work_struct register_work; /* registration work */
+        struct delayed_work unregister_work; /* unregistration work */
         struct work_struct beep_work; /* scheduled task for beep event */
         struct mutex mutex;
 };