From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754718Ab2HKW4a (ORCPT ); Sat, 11 Aug 2012 18:56:30 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:33469 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752512Ab2HKW4O (ORCPT ); Sat, 11 Aug 2012 18:56:14 -0400 Date: Sat, 11 Aug 2012 15:56:09 -0700 From: Greg Kroah-Hartman To: "Rafael J. Wysocki" Cc: linux-usb@vger.kernel.org, Matthias Urlichs , LKML , Linux PM list Subject: Re: [Regression, post-3.5] NULL pointer dereference in usb-wwan after resume from system suspend Message-ID: <20120811225609.GA20031@kroah.com> References: <201208120039.19463.rjw@sisk.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201208120039.19463.rjw@sisk.pl> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Aug 12, 2012 at 12:39:19AM +0200, Rafael J. Wysocki wrote: > Hi, > > The usb-wwan driver triggers a NULL pointer dereference oops after resume > from system suspend on my Toshiba Portege R500, but since that driver > hasn't changed since v3.5 and it is only used by the option driver, I suppose > that the latter is responsible for that. > > This is a clear regression from v3.5, it hasn't happened ever before. > > I'll collect some details tomorrow. Known bug, we have a fix for it in the usb-next tree now, it will be going to Linus in a few days. If you want, I can dig up the patch for it and send it to you, if it's stopping other things from working for you at the moment. thanks, greg k-h