053d95e7e5
Current GetVariable implementation will return the first variable for empty str VariableName, it is because GetVariable and GetNextVariablename are sharing same function FindVariable. But UEFI sepc defines SetVariable that If VariableName is an empty string, then EFI_INVALID_PARAMETER is returned, that means an empty string variable could never be set successfully, so GetVariable should return error for empty string VariableName. Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Ruiyu Ni <ruiyu.ni@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>