From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752349AbcAENC0 (ORCPT ); Tue, 5 Jan 2016 08:02:26 -0500 Received: from metis.ext.4.pengutronix.de ([92.198.50.35]:58892 "EHLO metis.ext.4.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751952AbcAENCZ (ORCPT ); Tue, 5 Jan 2016 08:02:25 -0500 Date: Tue, 5 Jan 2016 14:02:21 +0100 From: Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= To: Tero Roponen Cc: Martin Fuzzey , Greg Kroah-Hartman , linux-kernel@vger.kernel.org Subject: Re: [PATCH] base/platform: Fix platform drivers with no probe callback (ex alarmtimer) Message-ID: <20160105130221.GC11029@pengutronix.de> References: <20160104181708.10572.81323.stgit@localhost> <20160105084307.GB11029@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::c0 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jan 05, 2016 at 12:02:23PM +0200, Tero Roponen wrote: > > On Tue, 5 Jan 2016, Uwe Kleine-König wrote: > > > Hello, > > > > I think this is the same problem that another Martin found and fixed in > > > > http://mid.gmane.org/1449132704-9952-1-git-send-email-martin.wilck@ts.fujitsu.com > > > > I didn't check, but thought Greg already picked that up?! > > I can confirm that applying the patch in that link to 4.4-rc8 fixes the > following problem I've seen since 4.4-rc5: > > BUG: unable to handle kernel NULL pointer dereference at 0000000000000e20 > IP: [] asus_sysfs_is_visible+0xe/0x1d0 [asus_laptop] This is a separate bug however that is worth fixing, too. I guess this is similar to the tpm problem my broken patch made obvious. Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ |