From badc77a7f755d9e6124b5a77f8b3d852921b19ca Mon Sep 17 00:00:00 2001
From: Darien Raymond <admin@v2ray.com>
Date: Sat, 21 Oct 2017 19:27:20 +0200
Subject: [PATCH] return proper error in drain

---
 app/proxyman/mux/mux.go | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/app/proxyman/mux/mux.go b/app/proxyman/mux/mux.go
index 5425416dd..171aa318e 100644
--- a/app/proxyman/mux/mux.go
+++ b/app/proxyman/mux/mux.go
@@ -187,8 +187,7 @@ func (m *Client) Dispatch(ctx context.Context, outboundRay ray.OutboundRay) bool
 }
 
 func drain(reader io.Reader) error {
-	buf.Copy(NewStreamReader(reader), buf.Discard)
-	return nil
+	return buf.Copy(NewStreamReader(reader), buf.Discard)
 }
 
 func (m *Client) handleStatueKeepAlive(meta *FrameMetadata, reader io.Reader) error {