From a41dc5403fc61714b0a5fd3df3d7f25a453dc45d Mon Sep 17 00:00:00 2001
From: Gerhard Hoffmann <g.hoffmann@atb-online.eu>
Date: Thu, 6 Jul 2023 14:31:32 +0200
Subject: [PATCH] Open serial port only if not already opened.

---
 update.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/update.cpp b/update.cpp
index 60b38ee..2a34d8a 100644
--- a/update.cpp
+++ b/update.cpp
@@ -644,6 +644,7 @@ bool Update::doUpdate() {
     }
 
     bool serialOpened = false;
+    bool serialOpen = false;
 
     QStringList linesToWorkOn = getLinesToWorkOn();
     if (linesToWorkOn.size() == 0) {