static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
				  struct ieee80211_vif *vif,
				  struct ieee80211_scan_request *hw_req)
{
	struct mac80211_hwsim_data *hwsim = hw->priv;
	struct cfg80211_scan_request *req = &hw_req->req;

	mutex_lock(&hwsim->mutex);
	if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
		mutex_unlock(&hwsim->mutex);
		return -EBUSY;
	}
	hwsim->hw_scan_request = req;
	hwsim->hw_scan_vif = vif;
	hwsim->scan_chan_idx = 0;
	if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
		get_random_mask_addr(hwsim->scan_addr,
				     hw_req->req.mac_addr,
				     hw_req->req.mac_addr_mask);
	else
		memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
	memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
	mutex_unlock(&hwsim->mutex);

	wiphy_dbg(hw->wiphy, "hwsim hw_scan request\n");

	ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);

	return 0;
}

The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.