md: simplify export_array()

We don't really need that for_each loop, or those MD_BUGs.

Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 4 insertions, 8 deletions

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 73451f325dda..d96aa8094736 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -2187,17 +2187,13 @@ static void kick_rdev_from_array(struct md_rdev * rdev)
 
 static void export_array(struct mddev *mddev)
 {
-        struct md_rdev *rdev, *tmp;
+        struct md_rdev *rdev;
 
-        rdev_for_each_safe(rdev, tmp, mddev) {
-                if (!rdev->mddev) {
-                        MD_BUG();
-                        continue;
-                }
+        while (!list_empty(&mddev->disks)) {
+                rdev = list_first_entry(&mddev->disks, struct md_rdev,
+                                        same_set);
                 kick_rdev_from_array(rdev);
         }
-        if (!list_empty(&mddev->disks))
-                MD_BUG();
         mddev->raid_disks = 0;
         mddev->major_version = 0;
 }