From: Andrew Morton <akpm@linux-foundation.org>
Date: Wed, 13 Mar 2013 21:59:43 +0000 (-0700)
Subject: mm/fremap.c: fix oops on error path
X-Git-Tag: v3.9-rc3~16^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6d7825b10dbeafd60627cd04291fb10ec2b5b973;p=pandora-kernel.git

mm/fremap.c: fix oops on error path

If find_vma() fails, sys_remap_file_pages() will dereference `vma', which
contains NULL.  Fix it by checking the pointer.

(We could alternatively check for err==0, but this seems more direct)

(The vm_flags change is to squish a bogus used-uninitialised warning
without adding extra code).

Reported-by: Tommi Rantala <tt.rantala@gmail.com>
Cc: Michel Lespinasse <walken@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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