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MdeModulePkg: Minor update to the Data parameter for PEI GetVariable()

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PI 1.5 spec has minor update to the Data parameter for PEI
GetVariable(), and no real functional behavior change.

The modifier of Data parameter:
OUT VOID *Data
->
OUT VOID *Data OPTIONAL

The comments of Data parameter:
Data    Points to the buffer which will hold the returned variable value.
->
Data    Points to the buffer which will hold the returned variable value.
        May be NULL with a zero DataSize in order to determine the size of the buffer needed.

The patch is to follow the spec to update the implementation.

Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
This commit is contained in:
Star Zeng
2017-06-21 17:31:35 +08:00
parent bca08c489c
commit 9977995e68
2 changed files with 7 additions and 5 deletions
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5
MdeModulePkg/Universal/Variable/Pei/Variable.c
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@@ -947,9 +947,10 @@ FindVariable (
@param DataSize On entry, points to the size in bytes of the Data buffer.
On return, points to the size of the data returned in Data.
@param Data Points to the buffer which will hold the returned variable value.
May be NULL with a zero DataSize in order to determine the size of the buffer needed.
@retval EFI_SUCCESS The variable was read successfully.
@retval EFI_NOT_FOUND The variable could not be found.
@retval EFI_NOT_FOUND The variable was be found.
@retval EFI_BUFFER_TOO_SMALL The DataSize is too small for the resulting data.
DataSize is updated with the size required for
the specified variable.
@@ -965,7 +966,7 @@ PeiGetVariable (
IN CONST EFI_GUID *VariableGuid,
OUT UINT32 *Attributes,
IN OUT UINTN *DataSize,
OUT VOID *Data
OUT VOID *Data OPTIONAL
)
{
VARIABLE_POINTER_TRACK Variable;