memcg: fix wrong pointer initialization at page migration when memcg is disabled.

[safe/jmp/linux-2.6] / mm / migrate.c

diff --git a/mm/migrate.c b/mm/migrate.c
index 1a4bf48..7dbcb22 100644 (file)
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -602,7 +602,7 @@ static int unmap_and_move(new_page_t get_new_page, unsigned long private,
        struct page *newpage = get_new_page(page, private, &result);
        int rcu_locked = 0;
        int charge = 0;
-       struct mem_cgroup *mem;
+       struct mem_cgroup *mem = NULL;
 
        if (!newpage)
                return -ENOMEM;