5dcc244a1304193ce9898ed9cc parent 51b94d2a5a90d4800e74d7348bcde098a28f4fb3 author Thomas Gleixner 1181335617 -0700 committer Linus Torvalds 1181348614 -0700 rt-mutex: fix stale return value Alexey Kuznetsov found some problems in the pi-futex code. The major problem is a stale return value in rt_mutex_slowlock(): When the pi chain walk returns -EDEADLK, but the waiter was woken up during the phases where the locks were dropped, the rtmutex could be acquired, but due to the stale return value -EDEADLK returned to the caller. Reset the return value in the retry path. Signed-off-by: Thomas Gleixner Acked-by: Ingo Molnar Cc: Steven Rostedt Cc: Alexey Kuznetsov Cc: Ulrich Drepper Cc: Eric Dumazet Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds