From 5dc31a81a02732f8ae1a6dc14719b02307ac9b84 Mon Sep 17 00:00:00 2001
From: James Buren <braewoods+gl@braewoods.net>
Date: Sun, 28 Jul 2024 05:30:14 +0000
Subject: [PATCH] Fix error checking on CreateFile() usage

---
 serial_port/serial_port.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/serial_port/serial_port.cpp b/serial_port/serial_port.cpp
index 35c84191..c73dcade 100644
--- a/serial_port/serial_port.cpp
+++ b/serial_port/serial_port.cpp
@@ -108,7 +108,7 @@ bool serial_port::serial_open()
     \*-----------------------------------------*/
     file_descriptor = CreateFile(full_path, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
 
-    if((int)file_descriptor < 0)
+    if(file_descriptor == INVALID_HANDLE_VALUE)
     {
         return false;
     }