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

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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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Naoya Horiguchi 2014-04-07 15:36:54 -07:00 • committed by Linus Torvalds

parent 87c1b497c2

commit a9af0c5dfd

1 changed files with 3 additions and 2 deletions

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mm/hugetlb.c

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