On Wed, Dec 23, 2015 at 02:53:27PM -0700, Ross Zwisler wrote:
> Commit 1f7dd3e5a6e4 ("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@xxxxxxxxxxxxxxx>
Applied to cgroup/for-4.5.
Thanks.
--
tejun
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