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-rw-r--r--kernel/locking/rtmutex.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index 7781d801212f..35e9bfcc6ad9 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -158,7 +158,8 @@ rt_mutex_waiter_less(struct rt_mutex_waiter *left,
* then right waiter has a dl_prio() too.
*/
if (dl_prio(left->prio))
- return (left->task->dl.deadline < right->task->dl.deadline);
+ return dl_time_before(left->task->dl.deadline,
+ right->task->dl.deadline);
return 0;
}