linux-kernel - Re: [PATCH] cpufreq: qcom-hw: Fix memory leak in qcom_cpufreq_hw_read

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Date:   Wed, 9 Nov 2022 12:20:22 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Chen Hui <judy.chenhui@...wei.com>
Cc:     agross@...nel.org, andersson@...nel.org,
        konrad.dybcio@...ainline.org, rafael@...nel.org,
        sibis@...eaurora.org, mka@...omium.org,
        linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cpufreq: qcom-hw: Fix memory leak in
 qcom_cpufreq_hw_read_lut()

On 08-11-22, 15:23, Chen Hui wrote:
> If "cpu_dev" fails to get opp table in qcom_cpufreq_hw_read_lut(),
> the program will return, resulting in "table" resource is not released.
> 
> Fixes: 51c843cf77bb ("cpufreq: qcom: Update the bandwidth levels on frequency change")
> Signed-off-by: Chen Hui <judy.chenhui@...wei.com>
> ---
>  drivers/cpufreq/qcom-cpufreq-hw.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/cpufreq/qcom-cpufreq-hw.c b/drivers/cpufreq/qcom-cpufreq-hw.c
> index 833589bc95e4..d15097549e8c 100644
> --- a/drivers/cpufreq/qcom-cpufreq-hw.c
> +++ b/drivers/cpufreq/qcom-cpufreq-hw.c
> @@ -193,6 +193,7 @@ static int qcom_cpufreq_hw_read_lut(struct device *cpu_dev,
>  		}
>  	} else if (ret != -ENODEV) {
>  		dev_err(cpu_dev, "Invalid opp table in device tree\n");
> +		kfree(table);
>  		return ret;
>  	} else {
>  		policy->fast_switch_possible = true;

Applied. Thanks.

-- 
viresh