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

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Message-ID: <20150522021730.GA7730@linux>
Date:	Fri, 22 May 2015 07:47:30 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Shailendra Verma <shailendra.capricorn@...il.com>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Kukjin Kim <kgene@...nel.org>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	linux-pm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cpufreq:exynos-cpufreq - Fix for memory leak in case SOC
 name does not match.

On 21-05-15, 23:59, 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 |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
> index 82d2fbb..b77923a 100644
> --- a/drivers/cpufreq/exynos-cpufreq.c
> +++ b/drivers/cpufreq/exynos-cpufreq.c
> @@ -182,6 +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__);
> +		kfree(exynos_info);
>  		return -ENODEV;
>  	}

There is no point replicating this stuff. Use labels like: err_vdd_arm
to get this done. But you also need to make sure the right error gets
propagated.

-- 
viresh
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