linux-kernel - Re: [PATCH 12/13] cpufreq: tegra: call CPUFREQ

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Date:	Wed, 19 Jun 2013 11:11:45 -0600
From:	Stephen Warren <swarren@...dotorg.org>
To:	Viresh Kumar <viresh.kumar@...aro.org>
CC:	rjw@...k.pl, linaro-kernel@...ts.linaro.org, patches@...aro.org,
	cpufreq@...r.kernel.org, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org, robin.randhawa@....com,
	Steve.Bannister@....com, Liviu.Dudau@....com,
	charles.garcia-tobin@....com, arvind.chauhan@....com,
	dave.martin@....com, Stephen Warren <swarren@...dia.com>
Subject: Re: [PATCH 12/13] cpufreq: tegra: call CPUFREQ_POSTCHANGE notfier
 in error cases

On 06/19/2013 02:53 AM, Viresh Kumar wrote:
> PRECHANGE and POSTCHANGE notifiers must be called in groups, i.e either both
> should be called or both shouldn't be.
> 
> In case we have started PRECHANGE notifier and found an error, we must call
> POSTCHANGE notifier with freqs.new = freqs.old to guarantee that sequence of
> calling notifiers is complete.
> 
> This patch fixes it.

Acked-by: Stephen Warren <swarren@...dia.com>

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