[PATCH 1/3] ASoC: soc-acpi: add alternative id field for machine driver matching

[Pierre-Louis Bossart]

> +static bool snd_soc_acpi_id_present(struct snd_soc_acpi_mach *machine)
> +{
> +	struct snd_soc_acpi_codecs *id_alt = machine->id_alt;
> +	int i;
> +
> +	if (acpi_dev_present(machine->id, NULL, -1))
> +		return true;
> +
> +	if (id_alt == NULL)

if (!id_alt)

> +		return false;
> +
> +	for (i = 0; i < id_alt->num_codecs; i++) {
> +		if (acpi_dev_present(id_alt->codecs[i], NULL, -1))
> +			return true;
> +	}
> +
> +	return false;
> +}