iwlwifi: mvm: make sure AP is operating for ToF

It's possible for an AP interface to be UP but not actually
operating (i.e. not beaconing etc.) - in this case it can't
actually do ToF, so check for it.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/iwlwifi/mvm/tof.c

@@ -178,7 +178,8 @@ int iwl_mvm_tof_responder_cmd(struct iwl_mvm *mvm,
 	if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TOF_SUPPORT))
 		return -EINVAL;
 
-	if (vif->p2p || vif->type != NL80211_IFTYPE_AP) {
+	if (vif->p2p || vif->type != NL80211_IFTYPE_AP ||
+	    !mvmvif->ap_ibss_active) {
 		IWL_ERR(mvm, "Cannot start responder, not in AP mode\n");
 		return -EIO;
 	}