Re: [PATCH v7 1/3] scmi-cpufreq: Remove deferred probe

From: Viresh Kumar
Date: Thu Feb 18 2021 - 07:46:05 EST


On 15-02-21, 07:51, Nicola Mazzucato wrote:
> The current implementation of the scmi_cpufreq_init() function returns
> -EPROBE_DEFER when the OPP table is not populated. In practice the
> cpufreq core cannot handle this error code.
> Therefore, fix the return value and clarify the error message.
>
> Reviewed-by: Ionela Voinescu <ionela.voinescu@xxxxxxx>
> Signed-off-by: Nicola Mazzucato <nicola.mazzucato@xxxxxxx>
> ---
> drivers/cpufreq/scmi-cpufreq.c | 8 +++++---
> 1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/cpufreq/scmi-cpufreq.c b/drivers/cpufreq/scmi-cpufreq.c
> index 491a0a24fb1e..34bf2eb8d465 100644
> --- a/drivers/cpufreq/scmi-cpufreq.c
> +++ b/drivers/cpufreq/scmi-cpufreq.c
> @@ -155,9 +155,11 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy)
>
> nr_opp = dev_pm_opp_get_opp_count(cpu_dev);
> if (nr_opp <= 0) {
> - dev_dbg(cpu_dev, "OPP table is not ready, deferring probe\n");
> - ret = -EPROBE_DEFER;
> - goto out_free_opp;

Why change goto label as well ?

> + dev_err(cpu_dev, "%s: No OPPs for this device: %d\n",
> + __func__, ret);
> +
> + ret = -ENODEV;
> + goto out_free_priv;
> }
>
> priv = kzalloc(sizeof(*priv), GFP_KERNEL);
> --
> 2.27.0

--
viresh