[PATCH v7] eal: add bus cleanup to eal cleanup

[Stephen Hemminger]

On Fri,  3 Jun 2022 15:36:01 +0100
Kevin Laatz <kevin.laatz at intel.com> wrote:

> +/* Clean up all devices of all buses */
> +int
> +eal_bus_cleanup(void)
> +{
> +	int ret = 0;
> +	struct rte_bus *bus;
> +
> +	TAILQ_FOREACH(bus, &rte_bus_list, next) {
> +		if (bus->cleanup == NULL)
> +			continue;
> +		if (bus->cleanup() != 0)
> +			ret = -1;
> +	}
> +
> +	return ret;
> +}
> +

This is an internal  function, and all users of it
look like they don't use the return value.

Why not make the function void eal_bus_cleanup()
and simplify back up the call chain?