From c6243a14d9c902d3d91138402bf27a02b464bbdb Mon Sep 17 00:00:00 2001
From: sta <sta.blockhead@gmail.com>
Date: Tue, 8 Sep 2015 11:03:40 +0900
Subject: [PATCH] [Modify] Add null check

---
 websocket-sharp/Ext.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/websocket-sharp/Ext.cs b/websocket-sharp/Ext.cs
index ce9a95a3..ddd531d1 100644
--- a/websocket-sharp/Ext.cs
+++ b/websocket-sharp/Ext.cs
@@ -175,7 +175,9 @@ namespace WebSocketSharp
           var nread = stream.EndRead (ar);
           if (nread < 1) {
             // EOF/Disconnect before reading specified number of bytes.
-            completed (buffer.SubArray (0, offset));
+            if (completed != null)
+              completed (buffer.SubArray (0, offset));
+
             return;
           }