--- zzzz-none-000/linux-4.9.279/kernel/locking/mutex.c	2021-08-08 06:38:54.000000000 +0000
+++ puma7-atom-6591-750/linux-4.9.279/kernel/locking/mutex.c	2023-02-08 11:43:43.000000000 +0000
@@ -52,7 +52,7 @@
 	atomic_set(&lock->count, 1);
 	spin_lock_init(&lock->wait_lock);
 	INIT_LIST_HEAD(&lock->wait_list);
-	mutex_clear_owner(lock);
+	WRITE_ONCE(lock->owner, NULL);
 #ifdef CONFIG_MUTEX_SPIN_ON_OWNER
 	osq_lock_init(&lock->osq);
 #endif