[PATCH] md: set the unplug_fn and issue_flush_fn for md devices *after* committed to creation

We we set the too early, they may still be in place and possibly get called
even though the array didn't get set up properly.

Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index e96e2a1..3cb11ac 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1620,9 +1620,6 @@
 	atomic_set(&conf->active_stripes, 0);
 	atomic_set(&conf->preread_active_stripes, 0);
 
-	mddev->queue->unplug_fn = raid5_unplug_device;
-	mddev->queue->issue_flush_fn = raid5_issue_flush;
-
 	PRINTK("raid5: run(%s) called.\n", mdname(mddev));
 
 	ITERATE_RDEV(mddev,rdev,tmp) {
@@ -1728,6 +1725,10 @@
 	}
 
 	/* Ok, everything is just fine now */
+
+	mddev->queue->unplug_fn = raid5_unplug_device;
+	mddev->queue->issue_flush_fn = raid5_issue_flush;
+
 	mddev->array_size =  mddev->size * (mddev->raid_disks - 1);
 	return 0;
 abort: