diff --git a/drivers/md/md.c b/drivers/md/md.c
index 8350bde..1dd723d 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3066,11 +3066,8 @@
 			} else
 				err = -EBUSY;
 			spin_unlock_irq(&mddev->write_lock);
-		} else {
-			mddev->ro = 0;
-			mddev->recovery_cp = MaxSector;
-			err = do_md_run(mddev);
-		}
+		} else
+			err = -EINVAL;
 		break;
 	case active:
 		if (mddev->pers) {