From df851da3ceff5b6bcf5e12616f6af60812aab483 Mon Sep 17 00:00:00 2001
From: "Vitaly Cheptsov via Groups.Io" <vit9696=protonmail.com@groups.io>
Date: Tue, 7 Jan 2020 18:50:32 +0800
Subject: MdePkg: Do not use CreateEventEx unless required

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2446

There are many firmwares in the wild not supporting CreateEventEx,
including devices less than 5 years old.

Signed-off-by: Vitaly Cheptsov <vit9696@protonmail.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
---
 MdePkg/Library/UefiDebugLibStdErr/DebugLibConstructor.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'MdePkg/Library/UefiDebugLibStdErr/DebugLibConstructor.c')

diff --git a/MdePkg/Library/UefiDebugLibStdErr/DebugLibConstructor.c b/MdePkg/Library/UefiDebugLibStdErr/DebugLibConstructor.c
index ed73f92..b4ac17c 100644
--- a/MdePkg/Library/UefiDebugLibStdErr/DebugLibConstructor.c
+++ b/MdePkg/Library/UefiDebugLibStdErr/DebugLibConstructor.c
@@ -64,12 +64,11 @@ DxeDebugLibConstructor(
 {
   mDebugST = SystemTable;
 
-  SystemTable->BootServices->CreateEventEx (
-                                EVT_NOTIFY_SIGNAL,
+  SystemTable->BootServices->CreateEvent (
+                                EVT_SIGNAL_EXIT_BOOT_SERVICES,
                                 TPL_NOTIFY,
                                 ExitBootServicesCallback,
                                 NULL,
-                                &gEfiEventExitBootServicesGuid,
                                 &mExitBootServicesEvent
                                 );
 
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