diff --git a/block/genhd.c b/block/genhd.c
index b5820cf94b5d2c9775ff100c1510549bf7eda716..a906426b5f4fd84de9dc62b89047c2363afccb36 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -783,8 +783,10 @@ void del_gendisk(struct gendisk *disk)
 		delete_partition(disk, part->partno);
 	}
 	disk_part_iter_exit(&piter);
-	if (bdev)
+	if (bdev) {
 		mutex_unlock(&bdev->bd_mutex);
+		bdput(bdev);
+	}
 
 	invalidate_partition(disk, 0);
 	bdev_unhash_inode(disk_devt(disk));