static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
{
	u64 now = mac80211_hwsim_get_tsf_raw();
	return cpu_to_le64(now + data->tsf_offset);
}

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