The commit initializes those possibly uninitialized class variables in
class constructors.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
---
 BaseTools/Source/C/VfrCompile/VfrError.cpp      | 1 +
 BaseTools/Source/C/VfrCompile/VfrFormPkg.cpp    | 6 ++++++
 BaseTools/Source/C/VfrCompile/VfrUtilityLib.cpp | 3 +++
 3 files changed, 10 insertions(+)

diff --git a/BaseTools/Source/C/VfrCompile/VfrError.cpp b/BaseTools/Source/C/VfrCompile/VfrError.cpp
index 0f8f7dd891..2366fac5a7 100644
--- a/BaseTools/Source/C/VfrCompile/VfrError.cpp
+++ b/BaseTools/Source/C/VfrCompile/VfrError.cpp
@@ -67,6 +67,7 @@ CVfrErrorHandle::CVfrErrorHandle (
   mScopeRecordListTail   = NULL;
   mVfrErrorHandleTable   = VFR_ERROR_HANDLE_TABLE;
   mVfrWarningHandleTable = VFR_WARNING_HANDLE_TABLE;
+  mWarningAsError        = FALSE;
 }
 
 CVfrErrorHandle::~CVfrErrorHandle (
diff --git a/BaseTools/Source/C/VfrCompile/VfrFormPkg.cpp b/BaseTools/Source/C/VfrCompile/VfrFormPkg.cpp
index b8350623f2..0f0efd4c6d 100644
--- a/BaseTools/Source/C/VfrCompile/VfrFormPkg.cpp
+++ b/BaseTools/Source/C/VfrCompile/VfrFormPkg.cpp
@@ -104,8 +104,13 @@ CFormPkg::CFormPkg (
   SBufferNode *Node;
 
   mPkgLength           = 0;
+  mBufferSize          = 0;
   mBufferNodeQueueHead = NULL;
+  mBufferNodeQueueTail = NULL;
   mCurrBufferNode      = NULL;
+  mReadBufferNode      = NULL;
+  mReadBufferOffset    = 0;
+  PendingAssignList    = NULL;
 
   Node = new SBufferNode;
   if (Node == NULL) {
@@ -2421,6 +2426,7 @@ CIfrObj::CIfrObj (
   mObjBinLen   = (ObjBinLen == 0) ? gOpcodeSizesScopeTable[OpCode].mSize : ObjBinLen;
   mObjBinBuf   = ((DelayEmit == FALSE) && (gCreateOp == TRUE)) ? gCFormPkg.IfrBinBufferGet (mObjBinLen) : new CHAR8[EFI_IFR_MAX_LENGTH];
   mRecordIdx   = (gCreateOp == TRUE) ? gCIfrRecordInfoDB.IfrRecordRegister (0xFFFFFFFF, mObjBinBuf, mObjBinLen, mPkgOffset) : EFI_IFR_RECORDINFO_IDX_INVALUD;
+  mLineNo      = 0;
 
   assert (mObjBinBuf != NULL);
 
diff --git a/BaseTools/Source/C/VfrCompile/VfrUtilityLib.cpp b/BaseTools/Source/C/VfrCompile/VfrUtilityLib.cpp
index 4866639aab..c536498d77 100644
--- a/BaseTools/Source/C/VfrCompile/VfrUtilityLib.cpp
+++ b/BaseTools/Source/C/VfrCompile/VfrUtilityLib.cpp
@@ -958,6 +958,7 @@ CVfrVarDataTypeDB::CVfrVarDataTypeDB (
   mPackAlign     = DEFAULT_PACK_ALIGN;
   mPackStack     = NULL;
   mFirstNewDataTypeName = NULL;
+  mCurrDataType  = NULL;
 
   InternalTypesListInit ();
 }
@@ -1605,6 +1606,7 @@ SVfrVarStorageNode::SVfrVarStorageNode (
   IN EFI_VARSTORE_ID       VarStoreId
   )
 {
+  memset (&mGuid, 0, sizeof (EFI_GUID));
   if (StoreName != NULL) {
     mVarStoreName = new CHAR8[strlen(StoreName) + 1];
     strcpy (mVarStoreName, StoreName);
@@ -1616,6 +1618,7 @@ SVfrVarStorageNode::SVfrVarStorageNode (
   mVarStoreType                      = EFI_VFR_VARSTORE_NAME;
   mStorageInfo.mNameSpace.mNameTable = new EFI_VARSTORE_ID[DEFAULT_NAME_TABLE_ITEMS];
   mStorageInfo.mNameSpace.mTableSize = 0;
+  mAssignedFlag                      = FALSE;
 }
 
 SVfrVarStorageNode::~SVfrVarStorageNode (
-- 
2.12.0.windows.1

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