[PATCH] null pointer dereference in appledisplay driver
Commit 40b20c257a by Len Brown introduced
a null pointer dereference in the appledisplay driver. This patch fixes
it.
Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch>
Cc: Len Brown <lenb@kernel.org>
Cc: Greg KH <greg@kroah.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
			
			
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				| @ -281,8 +281,8 @@ static int appledisplay_probe(struct usb_interface *iface, | ||||
| 	/* 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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