linux-kernel - Re: od_set_powersave_bias: NULL pointer dereference

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Message-ID: <CAKohpon6m0vX6_ZDrwUD-OBuD5WAysooJgYHSEXKstud3bh7Kw@mail.gmail.com>
Date:	Thu, 27 Jun 2013 21:53:15 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Jacob Shin <jacob.shin@....com>
Cc:	Tim Gardner <tim.gardner@...onical.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	LKML <linux-kernel@...r.kernel.org>, cpufreq@...r.kernel.org,
	linux-pm@...r.kernel.org
Subject: Re: od_set_powersave_bias: NULL pointer dereference

On 27 June 2013 21:52, Jacob Shin <jacob.shin@....com> wrote:
> From 133f670aa1dc450fd37ba39081d046bf238c507b Mon Sep 17 00:00:00 2001
> From: Jacob Shin <jacob.shin@....com>
> Date: Thu, 27 Jun 2013 10:44:42 -0500
> Subject: [PATCH 1/1] cpufreq: don't leave stale policy pointer in
>  cdbs->cur_policy
>
> Set ->cur_policy to NULL when stopping a governor. Otherwise, the
> ->cur_policy pointer may be stale on systems that
> have_governor_per_policy when a new policy is allocated due to CPU
> hotplug offline/online.
>
> Suggested-by: Viresh Kumar <viresh.kumar@...aro.org>
> Signed-off-by: Jacob Shin <jacob.shin@....com>
> ---
>  drivers/cpufreq/cpufreq_governor.c |    1 +
>  1 file changed, 1 insertion(+)

Acked-by: Viresh Kumar <viresh.kumar@...aro.org>
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