linux-kernel - Re: [PATCH] cpufreq:exynos-cpufreq - Fix for memory leak in case SOC name does not match.

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Message-id: <20150609090722.43965fa0@amdc2363>
Date:	Tue, 09 Jun 2015 09:07:22 +0200
From:	Lukasz Majewski <l.majewski@...sung.com>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	linux-samsung-soc@...r.kernel.org, linux-pm@...r.kernel.org,
	Viresh Kumar <viresh.kumar@...aro.org>,
	linux-kernel@...r.kernel.org, Kukjin Kim <kgene@...nel.org>,
	Shailendra Verma <shailendra.capricorn@...il.com>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] cpufreq:exynos-cpufreq - Fix for memory leak in case SOC
 name does not match.

Hi Rafael,

> On Monday, June 08, 2015 10:31:00 AM Lukasz Majewski wrote:
> > Hi Viresh,
> > 
> > > On 25-05-15, 07:39, Shailendra Verma wrote:
> > > > During probe free the memory allocated to "exynos_info" in case
> > > > of unknown SOC type.
> > > > 
> > > > Signed-off-by: Shailendra Verma <shailendra.capricorn@...il.com>
> > > > ---
> > > >  drivers/cpufreq/exynos-cpufreq.c |    6 ++++--
> > > >  1 file changed, 4 insertions(+), 2 deletions(-)
> > > > 
> > > > diff --git a/drivers/cpufreq/exynos-cpufreq.c
> > > > b/drivers/cpufreq/exynos-cpufreq.c index 82d2fbb..8682378 100644
> > > > --- a/drivers/cpufreq/exynos-cpufreq.c
> > > > +++ b/drivers/cpufreq/exynos-cpufreq.c
> > > > @@ -182,7 +182,7 @@ static int exynos_cpufreq_probe(struct
> > > > platform_device *pdev) ret =
> > > > exynos5250_cpufreq_init(exynos_info); } else {
> > > >  		pr_err("%s: Unknown SoC type\n", __func__);
> > > > -		return -ENODEV;
> > > > +		ret = -ENODEV;
> > > >  	}
> > > >  
> > > >  	if (ret)
> > > > @@ -190,12 +190,14 @@ static int exynos_cpufreq_probe(struct
> > > > platform_device *pdev) 
> > > >  	if (exynos_info->set_freq == NULL) {
> > > >  		dev_err(&pdev->dev, "No set_freq function
> > > > (ERR)\n");
> > > > +		ret = -EINVAL;
> > > >  		goto err_vdd_arm;
> > > >  	}
> > > >  
> > > >  	arm_regulator = regulator_get(NULL, "vdd_arm");
> > > >  	if (IS_ERR(arm_regulator)) {
> > > >  		dev_err(&pdev->dev, "failed to get resource
> > > > vdd_arm\n");
> > > > +		ret = -EINVAL;
> > > >  		goto err_vdd_arm;
> > > >  	}
> > > >  
> > > > @@ -227,7 +229,7 @@ err_cpufreq_reg:
> > > >  	regulator_put(arm_regulator);
> > > >  err_vdd_arm:
> > > >  	kfree(exynos_info);
> > > > -	return -EINVAL;
> > > > +	return ret;
> > > >  }
> > > >  
> > > >  static struct platform_driver exynos_cpufreq_platdrv = {
> > > 
> > > Acked-by: Viresh Kumar <viresh.kumar@...aro.org>
> > > 
> > 
> > Acked-by: Lukasz Majewski <l.majewski@...sung.com>
> 
> I'm assuming that it will go it through the Samsung tree.
> 
> 

That would be the easiest way to proceed. 

Krzystof would you like to grab this patch?

-- 
Best regards,

Lukasz Majewski

Samsung R&D Institute Poland (SRPOL) | Linux Platform Group
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