Add the missing check for NULL pointer before use it.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10116 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 2 insertions, 0 deletions

diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/IfrParse.c b/MdeModulePkg/Universal/SetupBrowserDxe/IfrParse.c
index 5593b6eeb5..7660c6ef1f 100644
--- a/MdeModulePkg/Universal/SetupBrowserDxe/IfrParse.c
+++ b/MdeModulePkg/Universal/SetupBrowserDxe/IfrParse.c
@@ -1174,6 +1174,7 @@ ParseOpCodes (
       //

       if (CurrentExpression == NULL && MapScopeDepth > 0) {

         CurrentExpression = CreateExpression (CurrentForm);

+        ASSERT (MapExpressionList != NULL);

         InsertTailList (MapExpressionList, &CurrentExpression->Link);

         if (Scope == 0) {

           SingleOpCodeExpression = TRUE;

@@ -2120,6 +2121,7 @@ ParseOpCodes (
         //

         Status = PopCurrentExpression ((VOID **) &CurrentExpression);

         ASSERT_EFI_ERROR (Status);

+        ASSERT (MapScopeDepth > 0);

         MapScopeDepth --;

         break;