From a387f9708ab779d723236004845146b3b4e143c7 Mon Sep 17 00:00:00 2001
From: Ivan Kravets <me@ikravets.com>
Date: Wed, 8 Mar 2023 14:47:47 -0700
Subject: [PATCH] PyLint fix

---
 platformio/test/runners/readers/serial.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/platformio/test/runners/readers/serial.py b/platformio/test/runners/readers/serial.py
index 29916915..a9732d7f 100644
--- a/platformio/test/runners/readers/serial.py
+++ b/platformio/test/runners/readers/serial.py
@@ -46,7 +46,7 @@ class SerialTestOutputReader:
             ser.open()
         except serial.SerialException as exc:
             click.secho(str(exc), fg="red", err=True)
-            return None
+            return
 
         if not self.test_runner.options.no_reset:
             ser.flushInput()