From da3e039a0533122113f26db830bfc39f41d2bfd3 Mon Sep 17 00:00:00 2001
From: Aiken Harris <harraiken@noreply.codingworkshop.git>
Date: Sun, 20 Jul 2025 14:53:04 +0200
Subject: [PATCH] Use correct address when clearing COM port buffer

The code was reading from Port->Address to clear the RBR before the field was initialized.
---
 xtoskrnl/hl/cport.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xtoskrnl/hl/cport.c b/xtoskrnl/hl/cport.c
index 09f3129..d370a81 100644
--- a/xtoskrnl/hl/cport.c
+++ b/xtoskrnl/hl/cport.c
@@ -277,7 +277,7 @@ HlInitializeComPort(IN OUT PCPPORT Port,
     HlIoPortOutByte(PtrToUshort(PortAddress + (ULONG)COMPORT_REG_MCR), COMPORT_MCR_NOM);
 
     /* Read junk data out of the Receive Buffer Register (RBR) */
-    HlIoPortInByte(PtrToUshort(Port->Address + (ULONG)COMPORT_REG_RBR));
+    HlIoPortInByte(PtrToUshort(PortAddress + (ULONG)COMPORT_REG_RBR));
 
     /* Store port details */
     Port->Address = PortAddress;