From 1f4d4c0da87db42f97f43d8374967071fe85b37a Mon Sep 17 00:00:00 2001
From: Alexander Mills <alex@oresoftware.com>
Date: Wed, 19 Sep 2018 11:09:25 -0700
Subject: [PATCH] tty: make `readStream.setRawMode()` return `this`

PR-URL: https://github.com/nodejs/node/pull/22950
Fixes: https://github.com/nodejs/node/issues/22916
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
---
 doc/api/tty.md | 1 +
 lib/tty.js     | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/doc/api/tty.md b/doc/api/tty.md
index cc95bfa9ae86ba..45b66abb9e832d 100644
--- a/doc/api/tty.md
+++ b/doc/api/tty.md
@@ -64,6 +64,7 @@ added: v0.7.7
   raw device. If `false`, configures the `tty.ReadStream` to operate in its
   default mode. The `readStream.isRaw` property will be set to the resulting
   mode.
+* Returns: {this} - the read stream instance.
 
 Allows configuration of `tty.ReadStream` so that it operates as a raw device.
 
diff --git a/lib/tty.js b/lib/tty.js
index 4e78347c2d25ba..3cc2320e9695f1 100644
--- a/lib/tty.js
+++ b/lib/tty.js
@@ -71,9 +71,10 @@ ReadStream.prototype.setRawMode = function(flag) {
   const err = this._handle.setRawMode(flag);
   if (err) {
     this.emit('error', errors.errnoException(err, 'setRawMode'));
-    return;
+    return this;
   }
   this.isRaw = flag;
+  return this;
 };
 
 function WriteStream(fd) {