Refine the code to avoid error report.

Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ni Ruiyu <ruiyu.ni@intel.com>



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14143 6f19259b-4bc3-4df7-8a09-765794883524
2 files changed