linux-kernel - Re: [PATCH v2] cpufreq: governor: Free dbs

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Date:   Tue, 29 Aug 2023 12:44:02 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Liao Chang <liaochang1@...wei.com>
Cc:     rafael@...nel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] cpufreq: governor: Free dbs_data directly when
 gov->init() fails

On 29-08-23, 07:03, Liao Chang wrote:
> Due to the kobject embedded in the dbs_data doest not has a release()
> method yet, it needs to use kfree() to free dbs_data directly when
> governor fails to allocate the tunner field of dbs_data.
> 
> Signed-off-by: Liao Chang <liaochang1@...wei.com>
> ---
>  drivers/cpufreq/cpufreq_governor.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
> index 85da677c43d6..af44ee6a6430 100644
> --- a/drivers/cpufreq/cpufreq_governor.c
> +++ b/drivers/cpufreq/cpufreq_governor.c
> @@ -439,7 +439,7 @@ int cpufreq_dbs_governor_init(struct cpufreq_policy *policy)
>  
>  	ret = gov->init(dbs_data);
>  	if (ret)
> -		goto free_policy_dbs_info;
> +		goto free_dbs_data;
>  
>  	/*
>  	 * The sampling interval should not be less than the transition latency
> @@ -474,6 +474,8 @@ int cpufreq_dbs_governor_init(struct cpufreq_policy *policy)
>  	if (!have_governor_per_policy())
>  		gov->gdbs_data = NULL;
>  	gov->exit(dbs_data);
> +
> +free_dbs_data:
>  	kfree(dbs_data);
>  
>  free_policy_dbs_info:

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

-- 
viresh