Star Zeng f8c8e99c9e IntelSiliconPkg VTdPmrPei: Return SUCCESS when Mapping == NULL in Unmap
NULL is returned to Mapping when Operation is BusMasterCommonBuffer or
BusMasterCommonBuffer64 in PeiIoMmuMap().
So Mapping == NULL is valid when calling PeiIoMmuUnmap().

940dbd071e wrongly changed EFI_SUCCESS
to EFI_INVALID_PARAMETER when Mapping == NULL in PeiIoMmuUnmap().
This patch is to correct it.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
(cherry picked from commit abe63fa7dc)
2018-05-10 14:23:51 +08:00
2016-10-26 09:34:34 -07:00
2014-10-14 16:08:15 +00:00
2017-03-10 10:44:13 +08:00
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