From: Julia Lawall <julia@diku.dk>
Date: Fri, 28 Oct 2011 23:58:13 +0000 (+0200)
Subject: drivers/staging/rtl8712/rtl871x_mlme.c: eliminate a null pointer dereference
X-Git-Tag: v3.3-rc1~152^2~101^2~283
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7c19c1e80d348a5c79b65f9fc3d54bbbeea9cd0f;p=pandora-kernel.git

drivers/staging/rtl8712/rtl871x_mlme.c: eliminate a null pointer dereference

If ibss_wlan is NULL, it is not correct to memcpy into its field.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
expression E, E1;
identifier f;
statement S1,S2,S3;
@@

if (E == NULL)
{
  ... when != if (E == NULL || ...) S1 else S2
      when != E = E1
*E->f
  ... when any
  return ...;
}
else S3
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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