int reset_control_reset()

in core.c [326:358]

• 25 lines of code
• 11 McCabe index (conditional complexity)

int reset_control_reset(struct reset_control *rstc)
{
	int ret;

	if (!rstc)
		return 0;

	if (WARN_ON(IS_ERR(rstc)))
		return -EINVAL;

	if (reset_control_is_array(rstc))
		return reset_control_array_reset(rstc_to_array(rstc));

	if (!rstc->rcdev->ops->reset)
		return -ENOTSUPP;

	if (rstc->shared) {
		if (WARN_ON(atomic_read(&rstc->deassert_count) != 0))
			return -EINVAL;

		if (atomic_inc_return(&rstc->triggered_count) != 1)
			return 0;
	} else {
		if (!rstc->acquired)
			return -EPERM;
	}

	ret = rstc->rcdev->ops->reset(rstc->rcdev, rstc->id);
	if (rstc->shared && ret)
		atomic_dec(&rstc->triggered_count);

	return ret;
}