From 81c1460695f783a3f91431b2babea623556a7f5d Mon Sep 17 00:00:00 2001
From: Dandan Bi <dandan.bi@intel.com>
Date: Tue, 17 May 2016 11:25:34 +0800
Subject: MdeModulePkg/UiApp: Exit function when parameter is unsupported or
 invalid

When the parameter is unsupported or invalid,
should exit the function.

Cc: Qiu Shumin <shumin.qiu@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Qiu Shumin <shumin.qiu@intel.com>
---
 MdeModulePkg/Application/UiApp/FrontPageCustomizedUiSupport.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/MdeModulePkg/Application/UiApp/FrontPageCustomizedUiSupport.c b/MdeModulePkg/Application/UiApp/FrontPageCustomizedUiSupport.c
index 80450a5ac4..b838222106 100644
--- a/MdeModulePkg/Application/UiApp/FrontPageCustomizedUiSupport.c
+++ b/MdeModulePkg/Application/UiApp/FrontPageCustomizedUiSupport.c
@@ -195,11 +195,13 @@ UiSupportLibCallbackHandler (
     // Do nothing for other UEFI Action. Only do call back when data is changed.
     //
     *Status = EFI_UNSUPPORTED;
+    return TRUE;
   }
 
   if (Action == EFI_BROWSER_ACTION_CHANGED) {
     if ((Value == NULL) || (ActionRequest == NULL)) {
       *Status = EFI_INVALID_PARAMETER;
+      return TRUE;
     }
 
     *Status = EFI_SUCCESS;
-- 
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