From 452a8c8e560131de3b8bf09cfb3d92070ede59dd Mon Sep 17 00:00:00 2001
From: Icebob <mereg.norbert@gmail.com>
Date: Wed, 14 Aug 2019 09:29:18 +0200
Subject: [PATCH] Add missing `return` statement

---
 packages/serialport/test-manual/many-writes.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/serialport/test-manual/many-writes.js b/packages/serialport/test-manual/many-writes.js
index f2cd87ab3..dd1a17df8 100644
--- a/packages/serialport/test-manual/many-writes.js
+++ b/packages/serialport/test-manual/many-writes.js
@@ -66,7 +66,7 @@ function writeOneCommandAtATime(port) {
 async function writeAndDrain(port) {
   const command = commands.pop()
   if (!command) {
-    port
+    return port
   }
   const commandNumber = commandCount - commands.length;
   return new Promise((resolve, reject) => {