Re: [patch 1/16] s390: klist bus_find_device & driver_find_device callback.

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> +struct device * bus_find_device(struct bus_type * bus, struct device * start,
> +				void * data, int (*match)(struct device *, void *))
> +{
> +	struct klist_iter i;
> +	struct device * dev;
> +
> +	if (!bus)
> +		return NULL;
> +
> +	klist_iter_init_node(&bus->klist_devices, &i,
> +			     (start ? &start->knode_bus : NULL));
> +	while ((dev = next_device(&i)))
> +		if (match(dev, data))
> +			break;
> +	klist_iter_exit(&i);
> +	return dev;

does the klist magic somehow grab a reference for you?

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