Re: [PATCH 07/13] cpufreq: imx6q: call CPUFREQ_POSTCHANGE notfier inerror cases

From: Shawn Guo
Date: Wed Jun 19 2013 - 22:55:07 EST


On Wed, Jun 19, 2013 at 02:23:01PM +0530, 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.
>
> This also moves PRECHANGE notifier down so that we call it just before starting
> frequency transition.
>
> Cc: Shawn Guo <shawn.guo@xxxxxxxxxx>

Acked-by: Shawn Guo <shawn.guo@xxxxxxxxxx>

> Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>

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