From ce9c93cac036f6ad702f939270ff5e137da41404 Mon Sep 17 00:00:00 2001
From: zoubin <zoubin04@gmail.com>
Date: Mon, 11 Jan 2016 17:22:53 +0800
Subject: [PATCH] stream: remove useless if test in transform

PR-URL: https://github.com/nodejs/node/pull/4617
Reviewed-By: Roman Reiss <me@silverwind.io>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Brian White <mscdex@mscdex.net>
---
 lib/_stream_transform.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/_stream_transform.js b/lib/_stream_transform.js
index 1378c0c676e4ba..d58f112acfb95a 100644
--- a/lib/_stream_transform.js
+++ b/lib/_stream_transform.js
@@ -75,8 +75,7 @@ function afterTransform(stream, er, data) {
   if (data !== null && data !== undefined)
     stream.push(data);
 
-  if (cb)
-    cb(er);
+  cb(er);
 
   var rs = stream._readableState;
   rs.reading = false;