The UEFI specification v2.8 Errata A Section 8.2 "GetVariable()"
"Attributes" parameter description states:
"If not NULL, a pointer to the memory location to return the
attributes bitmask for the variable. See 'Related Definitions.'
If not NULL, then Attributes is set on output both when
EFI_SUCCESS and when EFI_BUFFER_TOO_SMALL is returned."
The attributes were previously only returned from the implementation
in Variable.c on EFI_SUCCESS. They are now returned on EFI_SUCCESS or
EFI_BUFFER_TOO_SMALL according to spec.
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com> Cc: Liming Gao <liming.gao@intel.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Hao A Wu <hao.a.wu@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Guomin Jiang <guomin.jiang@intel.com> Reviewed-by: Jian J Wang <jian.j.wang@intel.com>