diff --git a/models/user.go b/models/user.go
index d8bccb05..0ae76955 100644
--- a/models/user.go
+++ b/models/user.go
@@ -15,6 +15,5 @@ type User struct {
 }
 
 func (user *User) BeforeCreate(scope *gorm.Scope) error {
-	scope.SetColumn("ID", utils.ShortID())
-	return nil
+	return scope.SetColumn("ID", utils.ShortID())
 }
diff --git a/rtsp/rtsp-client.go b/rtsp/rtsp-client.go
index 4d6a31da..1f2495f0 100644
--- a/rtsp/rtsp-client.go
+++ b/rtsp/rtsp-client.go
@@ -372,7 +372,7 @@ func (client *RTSPClient) startStream() {
 		case 0x24: // rtp
 			header := make([]byte, 4)
 			header[0] = b
-			_, err := io.ReadFull(client.connRW, header[1:])
+			_, err = io.ReadFull(client.connRW, header[1:])
 			if err != nil {
 
 				if !client.Stoped {
diff --git a/rtsp/rtsp-session.go b/rtsp/rtsp-session.go
index 6225fe38..179422d4 100644
--- a/rtsp/rtsp-session.go
+++ b/rtsp/rtsp-session.go
@@ -698,16 +698,13 @@ func (session *Session) handleRequest(req *Request) {
 
 func (session *Session) SendRTP(pack *RTPPack) (err error) {
 	if pack == nil {
-		err = fmt.Errorf("player send rtp got nil pack")
-		return
+		return fmt.Errorf("player send rtp got nil pack")
 	}
 	if session.TransType == TRANS_TYPE_UDP {
 		if session.UDPClient == nil {
-			err = fmt.Errorf("player use udp transport but udp client not found")
-			return
+			return fmt.Errorf("player use udp transport but udp client not found")
 		}
-		err = session.UDPClient.SendRTP(pack)
-		return
+		return session.UDPClient.SendRTP(pack)
 	}
 	switch pack.Type {
 	case RTP_TYPE_AUDIO:
@@ -763,7 +760,7 @@ func (session *Session) SendRTP(pack *RTPPack) (err error) {
 		session.connWLock.Unlock()
 		session.OutBytes += pack.Buffer.Len() + 4
 	default:
-		err = fmt.Errorf("session tcp send rtp got unkown pack type[%v]", pack.Type)
+		return fmt.Errorf("session tcp send rtp got unkown pack type[%v]", pack.Type)
 	}
 	return
 }