bab9f94 ShellPkg: Code refine to avoid potential dereference of pointer.

1 file Authored by Qiu Shumin 9 years ago, Committed by shenshushi 9 years ago,
    ShellPkg: Code refine to avoid potential dereference of pointer.
    
    Contributed-under: TianoCore Contribution Agreement 1.0
    Signed-off-by: Qiu Shumin <shumin.qiu@intel.com>
    Reviewed-by: Jaben Carsey <Jaben.carsey@intel.com>
    
    
    git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16410 6f19259b-4bc3-4df7-8a09-765794883524