From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932137Ab0EJWsD (ORCPT ); Mon, 10 May 2010 18:48:03 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:53725 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757203Ab0EJWsA (ORCPT ); Mon, 10 May 2010 18:48:00 -0400 Date: Mon, 10 May 2010 15:46:32 -0700 From: Andrew Morton To: Oliver Neukum Cc: Eric Piel , Pavel Machek , Pavel Herrmann , lm-sensors@lm-sensors.org, linux-kernel@vger.kernel.org, stable@kernel.org Subject: Re: [patch]hp_accel: Fix race in device removal Message-Id: <20100510154632.bbe181d8.akpm@linux-foundation.org> In-Reply-To: <201005071804.20462.oneukum@suse.de> References: <201005071804.20462.oneukum@suse.de> X-Mailer: Sylpheed 2.4.8 (GTK+ 2.12.9; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 7 May 2010 18:04:20 +0200 Oliver Neukum wrote: > >From 505056649f5ecb1ebb086981243b9870ce961a87 Mon Sep 17 00:00:00 2001 > From: Oliver Neukum > Date: Fri, 7 May 2010 18:02:07 +0200 > Subject: [PATCH] hp_accel: Fix race in device removal > > The work queue has to be flushed after the device has been made > inaccessible. > You cc'ed stable@kernel.org so presumably you think it's a pretty serious bug. But alas, I (and presumably others) cannot confirm that, because you didn't describe the bug :( This also means that if someone hits a problem with this driver, they won't easily be able to work out whether this patch will fix it. Under what circumstances does it trigger? What are the observed effects when it triggers? Please always include this sort of information when sending bugfixes, thanks.