Fix a bug to handle case that SendForm() is called with an invalid FormSetGuid.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9422 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Universal/SetupBrowserDxe/IfrParse.c

@@ -655,6 +655,14 @@ DestroyFormSet (
   FORM_EXPRESSION       *Expression;
   FORM_BROWSER_FORM     *Form;
 
+  if (FormSet->IfrBinaryData == NULL) {
+    //
+    // Uninitialized FormSet
+    //
+    FreePool (FormSet);
+    return;
+  }
+
   //
   // Free IFR binary buffer
   //