From e4ca954f33b0201580b6a6bc67cec4e2c09b70b2 Mon Sep 17 00:00:00 2001
From: MikeBeaton <mjsbeaton@gmail.com>
Date: Thu, 4 Mar 2021 11:57:10 +0000
Subject: [PATCH] OcLog.c: Correct SerialPortWrite return value handling

---
 Library/OcDebugLogLib/OcLog.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/Library/OcDebugLogLib/OcLog.c b/Library/OcDebugLogLib/OcLog.c
index 9224e7f8..f13c30df 100755
--- a/Library/OcDebugLogLib/OcLog.c
+++ b/Library/OcDebugLogLib/OcLog.c
@@ -208,13 +208,10 @@ OcLogAddEntry  (
     // Write to serial port.
     //
     if ((OcLog->Options & OC_LOG_SERIAL) != 0) {
-      Status = SerialPortWrite ((UINT8 *) Private->TimingTxt, TimingLength);
-      if (Status == EFI_NO_MAPPING) {
-        //
-        // Disable serial port option.
-        //
-        OcLog->Options &= ~OC_LOG_SERIAL;
-      }
+      //
+      // No return value check - SerialPortWrite either stalls or falsely return all bytes written if no serial available.
+      //
+      SerialPortWrite ((UINT8 *) Private->TimingTxt, TimingLength);
       SerialPortWrite ((UINT8 *) Private->LineBuffer, LineLength);
     }