diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 376f1ab48a245fcdce521bd55a7ceb109f7f8c9e..c5f9918dab24f5151458033a4c786d18b31d0c56 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1822,6 +1822,7 @@ static struct mapped_device *alloc_dev(int minor)
 bad_bdev:
 	destroy_workqueue(md->wq);
 bad_thread:
+	del_gendisk(md->disk);
 	put_disk(md->disk);
 bad_disk:
 	blk_cleanup_queue(md->queue);