diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 0d52f6f..6382213 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2163,7 +2163,7 @@
 		return NULL;
 
 	dm_table_event_callback(map, NULL, NULL);
-	rcu_assign_pointer(md->map, NULL);
+	RCU_INIT_POINTER(md->map, NULL);
 	dm_sync_table(md);
 
 	return map;