[patch 025/101] Fix null pointer dereference in appledisplay driver

[Greg KH]

From: Michael Hanselmann <linux-kernel@xxxxxxxxx>

Commit 40b20c257a13c5a526ac540bc5e43d0fdf29792a by Len Brown introduced
a null pointer dereference in the appledisplay driver. This patch fixes
it.

Signed-off-by: Michael Hanselmann <linux-kernel@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>


---
 drivers/usb/misc/appledisplay.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- linux-2.6.20.1.orig/drivers/usb/misc/appledisplay.c
+++ linux-2.6.20.1/drivers/usb/misc/appledisplay.c
@@ -281,8 +281,8 @@ static int appledisplay_probe(struct usb
 	/* Register backlight device */
 	snprintf(bl_name, sizeof(bl_name), "appledisplay%d",
 		atomic_inc_return(&count_displays) - 1);
-	pdata->bd = backlight_device_register(bl_name, NULL, NULL,
-						&appledisplay_bl_data);
+	pdata->bd = backlight_device_register(bl_name, NULL,
+		pdata, &appledisplay_bl_data);
 	if (IS_ERR(pdata->bd)) {
 		err("appledisplay: Backlight registration failed");
 		goto error;

--
-
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