diff --git a/drivers/md/md.c b/drivers/md/md.c
index ad576ad..71d46eb 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -2911,7 +2911,7 @@
 		if (disk)
 			set_capacity(disk, 0);
 		mddev->changed = 1;
-	} else
+	} else if (mddev->pers)
 		printk(KERN_INFO "md: %s switched to read-only mode.\n",
 			mdname(mddev));
 	err = 0;