From: Julia Lawall <julia@diku.dk>
Date: Fri, 27 Aug 2010 05:57:18 +0000 (-0300)
Subject: V4L/DVB: drivers/media/video/em28xx: Remove potential NULL dereference
X-Git-Tag: v2.6.37-rc1~64^2~462
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6b81bef8cde141d8d8172a35633af27e17cf487a;p=pandora-kernel.git

V4L/DVB: drivers/media/video/em28xx: Remove potential NULL dereference

If the NULL test is necessary, the initialization involving a dereference of
the tested value should be moved after the NULL test.

The sematic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
type T;
expression E;
identifier i,fld;
statement S;
@@

- T i = E->fld;
+ T i;
  ... when != E
      when != i
  if (E == NULL) S
+ i = E->fld;
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

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