From caa1bcf9fef1b87a35a33b68e12ebb15214fb519 Mon Sep 17 00:00:00 2001
From: Astone <caliburn_marco@163.com>
Date: Mon, 9 Dec 2019 11:08:21 +0800
Subject: [PATCH] named return value for error defer modify.

---
 server/grpc/subscriber.go | 3 +--
 server/rpc_router.go      | 3 +--
 transport/grpc/handler.go | 3 +--
 3 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/server/grpc/subscriber.go b/server/grpc/subscriber.go
index 6d987974..9dd071c1 100644
--- a/server/grpc/subscriber.go
+++ b/server/grpc/subscriber.go
@@ -167,8 +167,7 @@ func validateSubscriber(sub server.Subscriber) error {
 }
 
 func (g *grpcServer) createSubHandler(sb *subscriber, opts server.Options) broker.Handler {
-	return func(p broker.Event) error {
-		var err error
+	return func(p broker.Event) (err error) {
 
 		defer func() {
 			if r := recover(); r != nil {
diff --git a/server/rpc_router.go b/server/rpc_router.go
index 19f672f4..d607f5f8 100644
--- a/server/rpc_router.go
+++ b/server/rpc_router.go
@@ -506,8 +506,7 @@ func (router *router) Subscribe(s Subscriber) error {
 	return nil
 }
 
-func (router *router) ProcessMessage(ctx context.Context, msg Message) error {
-	var err error
+func (router *router) ProcessMessage(ctx context.Context, msg Message) (err error) {
 
 	defer func() {
 		// recover any panics
diff --git a/transport/grpc/handler.go b/transport/grpc/handler.go
index e02e1445..ce58a227 100644
--- a/transport/grpc/handler.go
+++ b/transport/grpc/handler.go
@@ -16,8 +16,7 @@ type microTransport struct {
 	fn   func(transport.Socket)
 }
 
-func (m *microTransport) Stream(ts pb.Transport_StreamServer) error {
-	var err error
+func (m *microTransport) Stream(ts pb.Transport_StreamServer) (err error) {
 
 	sock := &grpcTransportSocket{
 		stream: ts,