1 files changed, 4 insertions, 4 deletions

diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index 82dad2ccd40b..dc3d6f2bbe2a 100644
--- a/kernel/locking/mutex.c
+++ b/kernel/locking/mutex.c
@@ -671,10 +671,6 @@ __mutex_unlock_common_slowpath(atomic_t *lock_count, int nested)
         struct mutex *lock = container_of(lock_count, struct mutex, count);
         unsigned long flags;
 
-        spin_lock_mutex(&lock->wait_lock, flags);
-        mutex_release(&lock->dep_map, nested, _RET_IP_);
-        debug_mutex_unlock(lock);
-
         /*
          * some architectures leave the lock unlocked in the fastpath failure
          * case, others need to leave it locked. In the later case we have to
@@ -683,6 +679,10 @@ __mutex_unlock_common_slowpath(atomic_t *lock_count, int nested)
         if (__mutex_slowpath_needs_to_unlock())
                 atomic_set(&lock->count, 1);
 
+        spin_lock_mutex(&lock->wait_lock, flags);
+        mutex_release(&lock->dep_map, nested, _RET_IP_);
+        debug_mutex_unlock(lock);
+
         if (!list_empty(&lock->wait_list)) {
                 /* get the first entry from the wait-list: */
                 struct mutex_waiter *waiter =