cgroup: Fix uninitialized variable warning

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Commit 1f7dd3e5a6 ("cgroup: fix handling of multi-destination migration
from subtree_control enabling") introduced the following compiler warning:

mm/memcontrol.c: In function ‘mem_cgroup_can_attach’:
mm/memcontrol.c:4790:9: warning: ‘memcg’ may be used uninitialized in this function [-Wmaybe-uninitialized]
   mc.to = memcg;
         ^

Fix this by initializing 'memcg' to NULL.

This was found using gcc (GCC) 4.9.2 20150212 (Red Hat 4.9.2-6).

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

...

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Ross Zwisler 2015-12-23 14:53:27 -07:00 • committed by Tejun Heo

parent 6bf024e693

commit eed67d75b6

1 changed files with 1 additions and 1 deletions

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mm/memcontrol.c

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