[PATCH 2/2] cpufreq: mvebu: Free opp if registering failed
Viresh Kumar
viresh.kumar at linaro.org
Wed Dec 13 18:59:32 PST 2017
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 at 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 at linaro.org>
--
viresh
More information about the linux-arm-kernel
mailing list