diff --git a/[refs] b/[refs]
index e38c1bb07680..b025efbf75a0 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ec5a19dd935eb3793e1f6ed491e8035b3d7b1df9
+refs/heads/master: 5842730de179405d80649231faa0b3f254477434
diff --git a/trunk/drivers/md/md.c b/trunk/drivers/md/md.c
index cb8281605be8..57fa64f93e5f 100644
--- a/trunk/drivers/md/md.c
+++ b/trunk/drivers/md/md.c
@@ -3849,6 +3849,7 @@ static int hot_add_disk(mddev_t * mddev, dev_t dev)
 	}
 	clear_bit(In_sync, &rdev->flags);
 	rdev->desc_nr = -1;
+	rdev->saved_raid_disk = -1;
 	err = bind_rdev_to_array(rdev, mddev);
 	if (err)
 		goto abort_export;