Reviewed-by: Ray Ni <[email protected]>

Thanks,
Ray
________________________________
From: Liu, Zhiguang <[email protected]>
Sent: Thursday, April 25, 2024 12:40
To: [email protected] <[email protected]>
Cc: Liu, Zhiguang <[email protected]>; Liming Gao 
<[email protected]>; Wu, Jiaxin <[email protected]>; Ni, Ray 
<[email protected]>; Laszlo Ersek <[email protected]>
Subject: [PATCH 1/2] MdeModulePkg/SMM: Initialize 'WillReturn' variable

The local variable 'WillReturn' was being used without prior
initialization in some code paths.
This patch ensures that 'WillReturn' is properly initialized
to prevent undefined behavior.

Cc: Liming Gao <[email protected]>
Cc: Jiaxin Wu <[email protected]>
Cc: Ray Ni <[email protected]>
Cc: Laszlo Ersek <[email protected]>

Signed-off-by: Zhiguang Liu <[email protected]>
---
 MdeModulePkg/Core/PiSmmCore/Smi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MdeModulePkg/Core/PiSmmCore/Smi.c 
b/MdeModulePkg/Core/PiSmmCore/Smi.c
index a84a1f48d3..6b56fa5f69 100644
--- a/MdeModulePkg/Core/PiSmmCore/Smi.c
+++ b/MdeModulePkg/Core/PiSmmCore/Smi.c
@@ -152,6 +152,7 @@ SmiManage (

   PERF_FUNCTION_BEGIN ();
   mSmiManageCallingDepth++;
+  WillReturn   = FALSE;
   Status       = EFI_NOT_FOUND;
   ReturnStatus = Status;
   if (HandlerType == NULL) {
--
2.31.1.windows.1



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