[PATCH v3 4/7] ARM: mediatek: Add sysirq interrupt polarity support

Arnd Bergmann
2014-10-09T14:37:25Z

On Thursday 09 October 2014 22:29:37 Joe. C wrote:

> +static int __init mtk_sysirq_of_init(struct device_node *node,
> + struct device_node *parent)
> +{
> + struct device_node *parent_node;
> + struct irq_domain *domain, *domain_parent = NULL;
> + struct mt_sysirq_chip_data *chip_data;
> + int ret = 0;
> +
> + parent_node = of_irq_find_parent(node);
> + if (parent_node) {
> + domain_parent = irq_find_host(parent_node);
> + of_node_put(parent_node);
> + }

Just a small comment: I think the 'parent' argument to the function
already contains the device node you are looking up here, so
no need for the second variable or _find_parent call.

This means you can also drop the = NULL assignment for the
domain.

Arnd