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Commit 571428be authored by Namhyung Kim's avatar Namhyung Kim Committed by Linus Torvalds
Browse files

kernel/user.c: add lock release annotation on free_user() 



free_user() releases uidhash_lock but was missing annotation.  Add it.
This removes following sparse warnings:

 include/linux/spinlock.h:339:9: warning: context imbalance in 'free_user' - unexpected unlock
 kernel/user.c:120:6: warning: context imbalance in 'free_uid' - wrong count at exit

Signed-off-by: default avatarNamhyung Kim <namhyung@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Dhaval Giani <dhaval.giani@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 562f5e63

kernel/user.c

+1 −0
Original line number Diff line number Diff line
@@ -91,6 +91,7 @@ static struct user_struct *uid_hash_find(uid_t uid, struct hlist_head *hashent) 
 * upon function exit.

 */

static void free_user(struct user_struct *up, unsigned long flags)

	__releases(&uidhash_lock)

{

	uid_hash_remove(up);

	spin_unlock_irqrestore(&uidhash_lock, flags);