From: chengkang <1412950785@qq.com>
Date: Fri, 20 Jul 2018 08:53:05 +0000 (+0800)
Subject: fix issue #2448
X-Git-Tag: v6.0.0b1~44^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c6da8b6fe7bd8ac26c251092f1d764ffa6fe655f;p=thirdparty%2Ftornado.git

fix issue #2448
---

diff --git a/tornado/http1connection.py b/tornado/http1connection.py
index 0002f857b..e2b4c787e 100644
--- a/tornado/http1connection.py
+++ b/tornado/http1connection.py
@@ -399,7 +399,7 @@ class HTTP1Connection(httputil.HTTPConnection):
             if chunk:
                 data += self._format_chunk(chunk)
             self._pending_write = self.stream.write(data)
-            self._pending_write.add_done_callback(self._on_write_complete)
+            future_add_done_callback(self._pending_write, self._on_write_complete)
         return future
 
     def _format_chunk(self, chunk):