releases/2.6.20.2/fix-null-pointer-dereference-in-appledisplay-driver.patch

   1 From stable-bounces@linux.kernel.org Fri Feb  9 17:31:14 2007
   2 From: Michael Hanselmann <linux-kernel@hansmi.ch>
   3 Date: Sat, 10 Feb 2007 01:18:23 +0100
   4 Subject: Fix null pointer dereference in appledisplay driver
   5 To: linux-kernel@vger.kernel.org
   6 Cc: len.brown@intel.com, akpm@linux-foundation.org, cappaberra@gmail.com
   7 Message-ID: <20070210001823.GA3557@hansmi.ch>
   8 Content-Disposition: inline
   9
  10 From: Michael Hanselmann <linux-kernel@hansmi.ch>
  11
  12 Commit 40b20c257a13c5a526ac540bc5e43d0fdf29792a by Len Brown introduced
  13 a null pointer dereference in the appledisplay driver. This patch fixes
  14 it.
  15
  16 Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch>
  17 Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
  18
  19
  20 ---
  21  drivers/usb/misc/appledisplay.c |    4 ++--
  22  1 file changed, 2 insertions(+), 2 deletions(-)
  23
  24 --- linux-2.6.20.1.orig/drivers/usb/misc/appledisplay.c
  25 +++ linux-2.6.20.1/drivers/usb/misc/appledisplay.c
  26 @@ -281,8 +281,8 @@ static int appledisplay_probe(struct usb
  27         /* Register backlight device */
  28         snprintf(bl_name, sizeof(bl_name), "appledisplay%d",
  29                 atomic_inc_return(&count_displays) - 1);
  30 -       pdata->bd = backlight_device_register(bl_name, NULL, NULL,
  31 -                                               &appledisplay_bl_data);
  32 +       pdata->bd = backlight_device_register(bl_name, NULL,
  33 +               pdata, &appledisplay_bl_data);
  34         if (IS_ERR(pdata->bd)) {
  35                 err("appledisplay: Backlight registration failed");
  36                 goto error;