tree 59c3304f340c8ba180002c99c8961b388bf84fb0
parent f217ac59b6dd73105abc13da3fe656391fa6d135
author Clemens Ladisch <clemens@ladisch.de> 1250504889 +0200
committer Takashi Iwai <tiwai@suse.de> 1250506101 +0200

sound: snd_ctl_remove_user_ctl: prevent removal of kernel controls

Ensure that userspace can remove only user controls.  Controls created
by kernel drivers must not be removed because they might be referenced
in calls to snd_ctl_notify().

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>