From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751407AbdFFJI0 (ORCPT ); Tue, 6 Jun 2017 05:08:26 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:55736 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751274AbdFFJIZ (ORCPT ); Tue, 6 Jun 2017 05:08:25 -0400 Date: Tue, 6 Jun 2017 11:08:05 +0200 From: "bigeasy@linutronix.de" To: "Levin, Alexander (Sasha Levin)" Cc: "peterz@infradead.org" , "tglx@linutronix.de" , "mingo@kernel.org" , "paulmck@linux.vnet.ibm.com" , "rostedt@goodmis.org" , "mathieu.desnoyers@efficios.com" , "mhiramat@kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] perf/tracing/cpuhotplug: don't release cred_guard_mutex if not taken Message-ID: <20170606090804.up6gasyw2clgdan2@linutronix.de> References: <20170603033903.12056-1-alexander.levin@verizon.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20170603033903.12056-1-alexander.levin@verizon.com> User-Agent: NeoMutt/20170306 (1.8.0) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2017-06-03 03:39:13 [+0000], Levin, Alexander (Sasha Levin) wrote: > From: Alexander Levin > > If we failed to acquire task's cred_guard_mutex we shouldn't proceed > to release it in the error path. > > Fixes: a63fbed776c ("perf/tracing/cpuhotplug: Fix locking order") > Signed-off-by: Alexander Levin Acked-by: Sebastian Andrzej Siewior Sebastian