static int __init iss_net_setup()

in platforms/iss/network.c [607:657]

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

static int __init iss_net_setup(char *str)
{
	struct iss_net_private *device = NULL;
	struct iss_net_init *new;
	struct list_head *ele;
	char *end;
	int rc;
	unsigned n;

	end = strchr(str, '=');
	if (!end) {
		pr_err("Expected '=' after device number\n");
		return 1;
	}
	*end = 0;
	rc = kstrtouint(str, 0, &n);
	*end = '=';
	if (rc < 0) {
		pr_err("Failed to parse '%s'\n", str);
		return 1;
	}
	str = end;

	spin_lock(&devices_lock);

	list_for_each(ele, &devices) {
		device = list_entry(ele, struct iss_net_private, device_list);
		if (device->index == n)
			break;
	}

	spin_unlock(&devices_lock);

	if (device && device->index == n) {
		pr_err("Device %u already configured\n", n);
		return 1;
	}

	new = memblock_alloc(sizeof(*new), SMP_CACHE_BYTES);
	if (new == NULL) {
		pr_err("Alloc_bootmem failed\n");
		return 1;
	}

	INIT_LIST_HEAD(&new->list);
	new->index = n;
	new->init = str + 1;

	list_add_tail(&new->list, &eth_cmd_line);
	return 1;
}