[PATCH 2/2] cpufreq: mvebu: Free opp if registering failed

[viresh.kumar@linaro.org (Viresh Kumar)]

On 13-12-17, 18:29, Gregory CLEMENT wrote:
> Since the introduction of this driver, the functions to remove the opp
> were added. So stop claiming we can't remove opp and use one of them in
> case of failure.
> 
> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
> ---
>  drivers/cpufreq/mvebu-cpufreq.c | 15 ++++++++-------
>  1 file changed, 8 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/cpufreq/mvebu-cpufreq.c b/drivers/cpufreq/mvebu-cpufreq.c
> index c043aad8e3a0..31513bd42705 100644
> --- a/drivers/cpufreq/mvebu-cpufreq.c
> +++ b/drivers/cpufreq/mvebu-cpufreq.c
> @@ -76,12 +76,6 @@ static int __init armada_xp_pmsu_cpufreq_init(void)
>  			return PTR_ERR(clk);
>  		}
>  
> -		/*
> -		 * In case of a failure of dev_pm_opp_add(), we don't
> -		 * bother with cleaning up the registered OPP (there's
> -		 * no function to do so), and simply cancel the
> -		 * registration of the cpufreq device.
> -		 */
>  		ret = dev_pm_opp_add(cpu_dev, clk_get_rate(clk), 0);
>  		if (ret) {
>  			clk_put(clk);
> @@ -91,7 +85,8 @@ static int __init armada_xp_pmsu_cpufreq_init(void)
>  		ret = dev_pm_opp_add(cpu_dev, clk_get_rate(clk) / 2, 0);
>  		if (ret) {
>  			clk_put(clk);
> -			return ret;
> +			dev_err(cpu_dev, "Failed to register OPPs\n");
> +			goto opp_register_failed;
>  		}
>  
>  		ret = dev_pm_opp_set_sharing_cpus(cpu_dev,
> @@ -104,5 +99,11 @@ static int __init armada_xp_pmsu_cpufreq_init(void)
>  
>  	platform_device_register_simple("cpufreq-dt", -1, NULL, 0);
>  	return 0;
> +
> +opp_register_failed:
> +	/* As registering has failed remove all the opp for all cpus */
> +	dev_pm_opp_cpumask_remove_table(cpu_possible_mask);
> +
> +	return ret;
>  }
>  device_initcall(armada_xp_pmsu_cpufreq_init);

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

-- 
viresh