From 9090c8b533013078c6df773e128070c76d917830 Mon Sep 17 00:00:00 2001
From: Thomas Palmer <thomas.palmer@hpe.com>
Date: Wed, 4 Jul 2018 00:46:01 +0800
Subject: [PATCH 1/1] MdeModulePkg/DisplayEngineDxe: Fix small
 InitializeDisplayEngine leak

After calling RegisterHotKey, the allocated memory in NewString should
be freed.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Thomas Palmer <thomas.palmer@hpe.com>
Reviewed-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
---
 MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c b/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c
index f2eac4d3fe..7390f954b6 100644
--- a/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c
+++ b/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c
@@ -4221,11 +4221,13 @@ InitializeDisplayEngine (
     NewString         = HiiGetString (gHiiHandle, STRING_TOKEN (FUNCTION_TEN_STRING), NULL);
     ASSERT (NewString != NULL);
     FormBrowserEx2->RegisterHotKey (&HotKey, BROWSER_ACTION_SUBMIT, 0, NewString);
+    FreePool (NewString);
 
     HotKey.ScanCode   = SCAN_F9;
     NewString         = HiiGetString (gHiiHandle, STRING_TOKEN (FUNCTION_NINE_STRING), NULL);
     ASSERT (NewString != NULL);
     FormBrowserEx2->RegisterHotKey (&HotKey, BROWSER_ACTION_DEFAULT, EFI_HII_DEFAULT_CLASS_STANDARD, NewString);
+    FreePool (NewString);
   }
 
   return EFI_SUCCESS;
-- 
2.39.2