iwlwifi: mvm: fix access to BSS elements

						    void *_data)

{

	struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data;

	const struct cfg80211_bss_ies *ies;

	const struct element *elem;

	elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, bss->ies->data,

				  bss->ies->len);

	rcu_read_lock();

	ies = rcu_dereference(bss->ies);

	elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data,

				  ies->len);

	if (!elem || elem->datalen < 10 ||

	    !(elem->data[10] &

	      WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) {

		data->tolerated = false;

	}

	rcu_read_unlock();

}

static void iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw,