diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 52c3a81..e96e2a1 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1873,7 +1873,7 @@
 			goto abort;
 		}
 		p->rdev = NULL;
-		synchronize_kernel();
+		synchronize_rcu();
 		if (atomic_read(&rdev->nr_pending)) {
 			/* lost the race, try later */
 			err = -EBUSY;