[patch 2/2] BaseTool/VfrCompile: Fix potential memory leak issue

[Dandan Bi <dandan.bi@intel.com>]

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=771

Cc: Eric Dong <eric.dong@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
---
 BaseTools/Source/C/VfrCompile/VfrUtilityLib.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/BaseTools/Source/C/VfrCompile/VfrUtilityLib.cpp b/BaseTools/Source/C/VfrCompile/VfrUtilityLib.cpp
index 9bdc544..5cab7bb 100644
--- a/BaseTools/Source/C/VfrCompile/VfrUtilityLib.cpp
+++ b/BaseTools/Source/C/VfrCompile/VfrUtilityLib.cpp
@@ -3502,10 +3502,14 @@ CVfrStringDB::SetStringFileName(IN CHAR8 *StringFileName)
 
   if (StringFileName == NULL) {
     return;
   }
 
+  if (mStringFileName != NULL) {
+    delete[] mStringFileName;
+  }
+
   FileLen = strlen (StringFileName) + 1;
   mStringFileName = new CHAR8[FileLen];
   if (mStringFileName == NULL) {
     return;
   }
-- 
1.9.5.msysgit.1