static int __init eisa_request_resources()

in eisa-bus.c [255:298]

• 32 lines of code
• 7 McCabe index (conditional complexity)

static int __init eisa_request_resources(struct eisa_root_device *root,
					 struct eisa_device *edev,
					 int slot)
{
	int i;

	for (i = 0; i < EISA_MAX_RESOURCES; i++) {
		/* Don't register resource for slot 0, since this is
		 * very likely to fail... :-( Instead, grab the EISA
		 * id, now we can display something in /proc/ioports.
		 */

		/* Only one region for mainboard */
		if (!slot && i > 0) {
			edev->res[i].start = edev->res[i].end = 0;
			continue;
		}

		if (slot) {
			edev->res[i].name  = NULL;
			edev->res[i].start = SLOT_ADDRESS(root, slot)
					     + (i * 0x400);
			edev->res[i].end   = edev->res[i].start + 0xff;
			edev->res[i].flags = IORESOURCE_IO;
		} else {
			edev->res[i].name  = NULL;
			edev->res[i].start = SLOT_ADDRESS(root, slot)
					     + EISA_VENDOR_ID_OFFSET;
			edev->res[i].end   = edev->res[i].start + 3;
			edev->res[i].flags = IORESOURCE_IO | IORESOURCE_BUSY;
		}

		if (request_resource(root->res, &edev->res[i]))
			goto failed;
	}

	return 0;

 failed:
	while (--i >= 0)
		release_resource(&edev->res[i]);

	return -1;
}