static int ssi_port_get_iomem()

in controllers/omap_ssi_port.c [1092:1123]

• 29 lines of code
• 5 McCabe index (conditional complexity)

static int ssi_port_get_iomem(struct platform_device *pd,
		const char *name, void __iomem **pbase, dma_addr_t *phy)
{
	struct hsi_port *port = platform_get_drvdata(pd);
	struct resource *mem;
	struct resource *ioarea;
	void __iomem *base;

	mem = platform_get_resource_byname(pd, IORESOURCE_MEM, name);
	if (!mem) {
		dev_err(&pd->dev, "IO memory region missing (%s)\n", name);
		return -ENXIO;
	}
	ioarea = devm_request_mem_region(&port->device, mem->start,
					resource_size(mem), dev_name(&pd->dev));
	if (!ioarea) {
		dev_err(&pd->dev, "%s IO memory region request failed\n",
								mem->name);
		return -ENXIO;
	}
	base = devm_ioremap(&port->device, mem->start, resource_size(mem));
	if (!base) {
		dev_err(&pd->dev, "%s IO remap failed\n", mem->name);
		return -ENXIO;
	}
	*pbase = base;

	if (phy)
		*phy = mem->start;

	return 0;
}