P2P: Accept Invitation Response non-success without Channel List

P2P Invitation Response frame is required to include the Channel List
attribute only in Status=Success case. Skip the debug message claiming
that a mandatory attribute was not included in non-Success case.

Signed-hostap: Jouni Malinen <j@w1.fi>

src/p2p/p2p_invitation.c

@@ -407,7 +407,7 @@ void p2p_process_invitation_resp(struct p2p_data *p2p, const u8 *sa,
 		return;
 	}
 
-	if (!msg.channel_list) {
+	if (!msg.channel_list && *msg.status == P2P_SC_SUCCESS) {
 		p2p_dbg(p2p, "Mandatory Channel List attribute missing in Invitation Response from "
 			MACSTR, MAC2STR(sa));
 #ifdef CONFIG_P2P_STRICT
@@ -416,6 +416,9 @@ void p2p_process_invitation_resp(struct p2p_data *p2p, const u8 *sa,
 #endif /* CONFIG_P2P_STRICT */
 		/* Try to survive without peer channel list */
 		channels = &p2p->channels;
+	} else if (!msg.channel_list) {
+		/* Non-success cases are not required to include Channel List */
+		channels = &p2p->channels;
 	} else if (p2p_peer_channels_check(p2p, &p2p->channels, dev,
 					   msg.channel_list,
 					   msg.channel_list_len) < 0) {