diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 588e8b43efab322b9e0223619ba1d22edb50a345..c047d5fcb325a19453760212a048946fef2a243e 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2149,12 +2149,16 @@ int dm_setup_md_queue(struct mapped_device *md, struct dm_table *t)
 
 	switch (type) {
 	case DM_TYPE_REQUEST_BASED:
-		md->disk->fops = &dm_rq_blk_dops;
 		r = dm_mq_init_request_queue(md, t);
 		if (r) {
 			DMERR("Cannot initialize queue for request-based dm mapped device");
 			return r;
 		}
+		/*
+		 * Change the fops after queue is initialized, so that bio won't
+		 * issued by rq-based path until that.
+		 */
+		md->disk->fops = &dm_rq_blk_dops;
 		break;
 	case DM_TYPE_BIO_BASED:
 	case DM_TYPE_DAX_BIO_BASED: