Sudip Mukherjee 8285027fc4 mm/page_owner: avoid null pointer dereference ...

We have dereferenced page_ext before checking it.  Lets check it first
and then used it.

Fixes: f86e427197 ("mm: check the return value of lookup_page_ext for all call sites")
Link: http://lkml.kernel.org/r/1465249059-7883-1-git-send-email-sudipm.mukherjee@gmail.com
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2016-06-24 17:23:52 -07:00

9.4 KiB

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