Re: [RFC PATCH v4 03/12] PM: Introduce an Energy Model management framework

[Peter Zijlstra]

On Thu, Jun 28, 2018 at 12:40:34PM +0100, Quentin Perret wrote:
> +/**
> + * em_fd_nr_cap_states() - Get the number of capacity states of a freq. domain
> + * @fd		: frequency domain for which want to do this
> + *
> + * Return: the number of capacity state in the frequency domain table
> + */
> +static inline int em_fd_nr_cap_states(struct em_freq_domain *fd)
> +{
> +	struct em_cs_table *table;
> +	int nr_states;
> +
> +	rcu_read_lock();
> +	table = rcu_dereference(fd->cs_table);
> +	nr_states = table->nr_cap_states;
> +	rcu_read_unlock();

So right here, we can continue to free @table...

> +
> +	return nr_states;
> +}

and then what does the value we return mean?