mm: memcontrol - uninitialised return value

Only an out of memory error will cause ret to be set.

Signed-off-by: Phil Carmody <[email protected]>
Acked-by: Kirill A. Shutemov <[email protected]>
Cc: Balbir Singh <[email protected]>
Cc: Daisuke Nishimura <[email protected]>
Acked-by: KAMEZAWA Hiroyuki <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 93b0239bc34dc658c324a1dc813da8b64dc16a4f..8c200e86da4cbc818b72db6e7ff3c72faf0480a9 100644 (file)
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3563,7 +3563,7 @@ static int mem_cgroup_usage_unregister_event(struct cgroup *cgrp,
        int type = MEMFILE_TYPE(cft->private);
        u64 usage;
        int size = 0;
-       int i, j, ret;
+       int i, j, ret = 0;
 
        mutex_lock(&memcg->thresholds_lock);
        if (type == _MEM)