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Date: Fri, 27 May 2016 13:07:10 +1000
From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org,
        Michal Hocko <mhocko@suse.com>
Subject: linux-next: build warning after merge of the akpm-current tree
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Hi Andrew,

After merging the akpm-current tree, today's linux-next build (arm
multi_v7_defconfig) produced this warning:

mm/oom_kill.c: In function '__oom_reap_task':
mm/oom_kill.c:537:2: warning: 'mm' may be used uninitialized in this function [-Wmaybe-uninitialized]
  mmput_async(mm);
  ^

Introduced by commit

  df1e2f56632d ("oom_reaper: close race with exiting task")

This is real - the first "goto unlock_oom" is before "mm" has been
assigned.

-- 
Cheers,
Stephen Rothwell