diff --git a/block/blk-mq.c b/block/blk-mq.c
index 8070b6c..33292c0 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -3112,8 +3112,11 @@ static void blk_mq_clear_rq_mapping(struct blk_mq_tags *drv_tags,
 	struct page *page;
 	unsigned long flags;
 
-	/* There is no need to clear a driver tags own mapping */
-	if (drv_tags == tags)
+	/*
+	 * There is no need to clear mapping if driver tags is not initialized
+	 * or the mapping belongs to the driver tags.
+	 */
+	if (!drv_tags || drv_tags == tags)
 		return;
 
 	list_for_each_entry(page, &tags->page_list, lru) {