[PATCH] MdeModulePkg: Initialize local variable value before they are used

["gaoliming" <gaoliming@byosoft.com.cn>]

This change is to fix the compiler error on GCC49 release build.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Signed-off-by: Liming Gao <gaoliming@byosoft.com.cn>
---
 MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AhciMode.c                 | 1 +
 .../Library/VariablePolicyHelperLib/VariablePolicyHelperLib.c    | 1 +
 2 files changed, 2 insertions(+)

diff --git a/MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AhciMode.c b/MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AhciMode.c
index e99a812a44..0779f94f9e 100644
--- a/MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AhciMode.c
+++ b/MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AhciMode.c
@@ -1122,6 +1122,7 @@ AhciDmaTransfer (
 
   Map   = NULL;
   PciIo = Instance->PciIo;
+  Status = EFI_SUCCESS;
 
   if (PciIo == NULL) {
     return EFI_INVALID_PARAMETER;
diff --git a/MdeModulePkg/Library/VariablePolicyHelperLib/VariablePolicyHelperLib.c b/MdeModulePkg/Library/VariablePolicyHelperLib/VariablePolicyHelperLib.c
index 0c9299c8b0..7822cbf4bb 100644
--- a/MdeModulePkg/Library/VariablePolicyHelperLib/VariablePolicyHelperLib.c
+++ b/MdeModulePkg/Library/VariablePolicyHelperLib/VariablePolicyHelperLib.c
@@ -117,6 +117,7 @@ CreateBasicVariablePolicy (
 
   // Now we've gotta determine the total size of the buffer required for
   // the VariablePolicy structure.
+  NameSize  = 0;
   TotalSize = sizeof( VARIABLE_POLICY_ENTRY );
   if (Name != NULL) {
     NameSize = StrnSizeS( Name, MAX_UINT16 );
-- 
2.27.0.windows.1