diff --git a/drivers/block/rd.c b/drivers/block/rd.c
index 485aa87..43d4ebc 100644
--- a/drivers/block/rd.c
+++ b/drivers/block/rd.c
@@ -403,7 +403,7 @@
 		struct block_device *bdev = rd_bdev[i];
 		rd_bdev[i] = NULL;
 		if (bdev) {
-			invalidate_bdev(bdev, 1);
+			invalidate_bdev(bdev);
 			blkdev_put(bdev);
 		}
 		del_gendisk(rd_disks[i]);