Merge tag 'perf-tools-for-v5.15-2021-09-11' of git://git.kernel.org/pub/scm/linux...

[linux-2.6-microblaze.git] / kernel / locking / rtmutex.c

diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index 8eabdc7..6bb116c 100644 (file)
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -753,7 +753,7 @@ static int __sched rt_mutex_adjust_prio_chain(struct task_struct *task,
                 * other configuration and we fail to report; also, see
                 * lockdep.
                 */
-               if (IS_ENABLED(CONFIG_PREEMPT_RT) && orig_waiter->ww_ctx)
+               if (IS_ENABLED(CONFIG_PREEMPT_RT) && orig_waiter && orig_waiter->ww_ctx)
                        ret = 0;
 
                raw_spin_unlock(&lock->wait_lock);