Re: [PATCH net-next v13 04/13] net: pse-pd: Add support for PSE power domains

[Jakub Kicinski <kuba@kernel.org>]

On Tue, 10 Jun 2025 10:11:38 +0200 Kory Maincent wrote:
> +static void __pse_pw_d_release(struct kref *kref)
> +{
> +	struct pse_power_domain *pw_d = container_of(kref,
> +						     struct pse_power_domain,
> +						     refcnt);
> +
> +	regulator_put(pw_d->supply);
> +	xa_erase(&pse_pw_d_map, pw_d->id);
> +}
> +
> +/**
> + * pse_flush_pw_ds - flush all PSE power domains of a PSE
> + * @pcdev: a pointer to the initialized PSE controller device
> + */
> +static void pse_flush_pw_ds(struct pse_controller_dev *pcdev)
> +{
> +	struct pse_power_domain *pw_d;
> +	int i;
> +
> +	for (i = 0; i < pcdev->nr_lines; i++) {
> +		if (!pcdev->pi[i].pw_d)
> +			continue;
> +
> +		pw_d = xa_load(&pse_pw_d_map, pcdev->pi[i].pw_d->id);
> +		if (!pw_d)
> +			continue;
> +
> +		kref_put_mutex(&pw_d->refcnt, __pse_pw_d_release,
> +			       &pse_pw_d_mutex);
> +	}
> +}

AFAIU the release function (__pse_pw_d_release) is supposed to release
the mutex.