f map_err

lightning/src/ln/channelmanager.rs

@@ -6170,14 +6170,11 @@ where
 
 		// If we're doing manual acceptance checks on the channel, then defer creation until we're sure we want to accept.
 		if self.default_configuration.manually_accept_inbound_channels {
-			let channel_type_res = channel::channel_type_from_open_channel(
-				&msg, &peer_state.latest_features, &self.channel_type_features()
-			);
-			let channel_type = match channel_type_res {
-				Ok(channel_type) => channel_type,
-				Err(e) =>
-					return Err(MsgHandleErrInternal::from_chan_no_close(e, msg.temporary_channel_id)),
-			};
+			let channel_type = channel::channel_type_from_open_channel(
+					&msg, &peer_state.latest_features, &self.channel_type_features()
+				).map_err(|e|
+					MsgHandleErrInternal::from_chan_no_close(e, msg.temporary_channel_id)
+				)?;
 			let mut pending_events = self.pending_events.lock().unwrap();
 			pending_events.push_back((events::Event::OpenChannelRequest {
 				temporary_channel_id: msg.temporary_channel_id.clone(),