From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Date: Mon, 7 Apr 2014 22:36:54 +0000 (-0700)
Subject: mm/hugetlb.c: add NULL check of return value of huge_pte_offset
X-Git-Tag: v3.15-rc1~57^2~154
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a9af0c5dfdaf0b2e1a8bab7fbf6f29138947d534;p=pandora-kernel.git

mm/hugetlb.c: add NULL check of return value of huge_pte_offset

huge_pte_offset() could return NULL, so we need NULL check to avoid
potential NULL pointer dereferences.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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