linux-kernel - Re: [PATCH 1/3] cpufreq, longhaul: Fix double invocation of cpufreq_freq_transition

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Message-ID: <CAKohpo=0wppEthZzoRGTqurtt=135NWeVTKJ2y=mwy82+O7-zQ@mail.gmail.com>
Date:	Fri, 25 Apr 2014 14:07:13 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Meelis Roos <mroos@...ux.ee>,
	"cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/3] cpufreq, longhaul: Fix double invocation of cpufreq_freq_transition_begin/end

On 25 April 2014 13:48, Srivatsa S. Bhat
<srivatsa.bhat@...ux.vnet.ibm.com> wrote:

> diff --git a/drivers/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c

> @@ -269,8 +269,6 @@ static void longhaul_setstate(struct cpufreq_policy *policy,

This routine has this code as well:

mult = mults[mults_index & 0x1f];
if (mult == -1)
        return;
speed = calc_speed(mult);
if ((speed > highest_speed) || (speed < lowest_speed))
        return;

And so it might return without changing frequency and that's why I
left this driver earlier for this change.. So, please return -EINVAL
from here..
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