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ALSA: control: Protect user controls against concurrent access
[pandora-kernel.git]
/
sound
/
core
/
init.c
diff --git
a/sound/core/init.c
b/sound/core/init.c
index
fa0f35b
..
6333f8b
100644
(file)
--- a/
sound/core/init.c
+++ b/
sound/core/init.c
@@
-207,6
+207,7
@@
int snd_card_create(int idx, const char *xid,
INIT_LIST_HEAD(&card->devices);
init_rwsem(&card->controls_rwsem);
rwlock_init(&card->ctl_files_rwlock);
+ mutex_init(&card->user_ctl_lock);
INIT_LIST_HEAD(&card->controls);
INIT_LIST_HEAD(&card->ctl_files);
spin_lock_init(&card->files_lock);