static ssize_t range_parse()

in bus.c [1066:1094]

• 24 lines of code
• 6 McCabe index (conditional complexity)

static ssize_t range_parse(const char *opt, size_t len, struct range *range)
{
	unsigned long long addr = 0;
	char *start, *end, *str;
	ssize_t rc = -EINVAL;

	str = kstrdup(opt, GFP_KERNEL);
	if (!str)
		return rc;

	end = str;
	start = strsep(&end, "-");
	if (!start || !end)
		goto err;

	rc = kstrtoull(start, 16, &addr);
	if (rc)
		goto err;
	range->start = addr;

	rc = kstrtoull(end, 16, &addr);
	if (rc)
		goto err;
	range->end = addr;

err:
	kfree(str);
	return rc;
}