linux-kernel - Re: [PATCH] cpufreq: cpu0: Free parent node for error cases

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Message-ID: <20130502024849.GF3442@S2101-09.ap.freescale.net>
Date:	Thu, 2 May 2013 10:48:50 +0800
From:	Shawn Guo <shawn.guo@...aro.org>
To:	Viresh Kumar <viresh.kumar@...aro.org>
CC:	<rjw@...k.pl>, <linaro-kernel@...ts.linaro.org>,
	<patches@...aro.org>, <cpufreq@...r.kernel.org>,
	<linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<robin.randhawa@....com>, <Steve.Bannister@....com>,
	<Liviu.Dudau@....com>, <charles.garcia-tobin@....com>,
	<arvind.chauhan@....com>, <nm@...com>
Subject: Re: [PATCH] cpufreq: cpu0: Free parent node for error cases

On Wed, May 01, 2013 at 10:34:43AM +0530, Viresh Kumar wrote:
> We are freeing parent node in success cases but not in failure cases. Lets do
> it.
> 
> Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
> ---
>  drivers/cpufreq/cpufreq-cpu0.c | 13 ++++++++-----
>  1 file changed, 8 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
> index 3ab8294..c025714 100644
> --- a/drivers/cpufreq/cpufreq-cpu0.c
> +++ b/drivers/cpufreq/cpufreq-cpu0.c
> @@ -189,7 +189,8 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev)
>  
>  	if (!np) {
>  		pr_err("failed to find cpu0 node\n");
> -		return -ENOENT;
> +		ret = -ENOENT;
> +		goto out_put_parent;
>  	}
>  
>  	cpu_dev = &pdev->dev;
> @@ -199,7 +200,7 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev)
>  	if (IS_ERR(cpu_clk)) {
>  		ret = PTR_ERR(cpu_clk);
>  		pr_err("failed to get cpu0 clock: %d\n", ret);
> -		goto out_put_node;
> +		goto out_put_np;
>  	}
>  
>  	cpu_reg = devm_regulator_get(cpu_dev, "cpu0");
> @@ -211,13 +212,13 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev)
>  	ret = of_init_opp_table(cpu_dev);
>  	if (ret) {
>  		pr_err("failed to init OPP table: %d\n", ret);
> -		goto out_put_node;
> +		goto out_put_np;
>  	}
>  
>  	ret = opp_init_cpufreq_table(cpu_dev, &freq_table);
>  	if (ret) {
>  		pr_err("failed to init cpufreq table: %d\n", ret);
> -		goto out_put_node;
> +		goto out_put_np;
>  	}
>  
>  	of_property_read_u32(np, "voltage-tolerance", &voltage_tolerance);
> @@ -262,8 +263,10 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev)
>  
>  out_free_table:
>  	opp_free_cpufreq_table(cpu_dev, &freq_table);
> -out_put_node:
> +out_put_np:

Unnecessary renaming brings unnecessary diffstat?

Shawn

>  	of_node_put(np);
> +out_put_parent:
> +	of_node_put(parent);
>  	return ret;
>  }
>  
> -- 
> 1.7.12.rc2.18.g61b472e
> 

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