SwapMig: fix double page unlock

The cleanup patches screwed things up slightly. In case of an unsuccessful
migration a page may be unlocked twice.

Signed-off-by: Christoph Lameter <clameter@sgi.com>


Index: linux-2.6.15-rc2-mm1/mm/vmscan.c
===================================================================
--- linux-2.6.15-rc2-mm1.orig/mm/vmscan.c	2005-11-28 11:06:15.000000000 -0800
+++ linux-2.6.15-rc2-mm1/mm/vmscan.c	2005-11-28 11:23:45.000000000 -0800
@@ -751,6 +751,7 @@ redo:
 			list_move(&page->lru, moved);
 			continue;
 		}
+		goto next;
 
 unlock_page:
 		unlock_page(page);