Message ID | c439f5b6bbc2047e1662f4d523350531425bcf9d.1393576981.git.viresh.kumar@linaro.org |
---|---|
State | New |
Headers | show
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[209.132.180.67]) by mx.google.com with ESMTP id zj6si1180744pac.262.2014.02.28.00.45.52; Fri, 28 Feb 2014 00:45:52 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751829AbaB1Ipg (ORCPT <rfc822;linus.walleij@linaro.org> + 26 others); Fri, 28 Feb 2014 03:45:36 -0500 Received: from mail-we0-f175.google.com ([74.125.82.175]:63186 "EHLO mail-we0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750927AbaB1Ipe (ORCPT <rfc822;linux-kernel@vger.kernel.org>); Fri, 28 Feb 2014 03:45:34 -0500 Received: by mail-we0-f175.google.com with SMTP id q59so282488wes.6 for <linux-kernel@vger.kernel.org>; Fri, 28 Feb 2014 00:45:33 -0800 (PST) X-Received: by 10.180.102.42 with SMTP id fl10mr2133863wib.42.1393577133479; Fri, 28 Feb 2014 00:45:33 -0800 (PST) Received: from localhost ([213.122.173.131]) by mx.google.com with ESMTPSA id h13sm2539221wjr.22.2014.02.28.00.45.29 for <multiple recipients> (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Fri, 28 Feb 2014 00:45:32 -0800 (PST) From: Viresh Kumar <viresh.kumar@linaro.org> To: tglx@linutronix.de Cc: linaro-kernel@lists.linaro.org, linux-kernel@vger.kernel.org, fweisbec@gmail.com, tj@kernel.org, peterz@infradead.org, mingo@kernel.org, Viresh Kumar <viresh.kumar@linaro.org> Subject: [PATCH 1/2] timer: check failure of timer_cpu_notify() before calling init_timer_stats() Date: Fri, 28 Feb 2014 14:15:21 +0530 Message-Id: <c439f5b6bbc2047e1662f4d523350531425bcf9d.1393576981.git.viresh.kumar@linaro.org> X-Mailer: git-send-email 1.7.12.rc2.18.g61b472e Sender: linux-kernel-owner@vger.kernel.org Precedence: list List-ID: <patchwork-forward.linaro.org> X-Mailing-List: linux-kernel@vger.kernel.org X-Removed-Original-Auth: Dkim didn't pass. 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diff --git a/kernel/timer.c b/kernel/timer.c index f64a98c..e8e7839 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -1674,9 +1674,9 @@ void __init init_timers(void) err = timer_cpu_notify(&timers_nb, (unsigned long)CPU_UP_PREPARE, (void *)(long)smp_processor_id()); - init_timer_stats(); - BUG_ON(err != NOTIFY_OK); + + init_timer_stats(); register_cpu_notifier(&timers_nb); open_softirq(TIMER_SOFTIRQ, run_timer_softirq); }
timer_cpu_notify() should return NOTIFY_OK and nothing else. Anything else would trigger a BUG_ON(). Return value of this routine is already checked correctly but is done after issuing a call to init_timer_stats(). The right order would be to check the error case first and then call init_timer_stats(). Lets do it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> --- kernel/timer.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)