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MdePkg: Minor update to the Data parameter for GetVariable() 

UEFI 2.6 spec has minor update to the Data parameter for 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	The buffer to return the contents of the variable.
->
Data	The buffer to return the contents of the variable. May be NULL
        with a zero DataSize in order to determine the size buffer needed.

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

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>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19770 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Star Zeng 2016-01-29 09:15:33 +00:00 committed by lzeng14
parent 9132a8f8b2
commit 61ce1aea26
1 changed files with 4 additions and 3 deletions
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7
MdePkg/Include/Uefi/UefiSpec.h
View File

@ -5,7 +5,7 @@
If a code construct is defined in the UEFI 2.5 specification it must be included
by this include file.
Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available under
the terms and conditions of the BSD License that accompanies this distribution.
The full text of the license may be found at
@ -628,7 +628,8 @@ VOID
attributes bitmask for the variable.
@param[in, out] DataSize On input, the size in bytes of the return Data buffer.
On output the size of data returned in Data.
@param[out] Data The buffer to return the contents of the variable.
@param[out] Data The buffer to return the contents of the variable. May be NULL
with a zero DataSize in order to determine the size buffer needed.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_NOT_FOUND The variable was not found.
@ -648,7 +649,7 @@ EFI_STATUS
IN EFI_GUID *VendorGuid,
OUT UINT32 *Attributes, OPTIONAL
IN OUT UINTN *DataSize,
OUT VOID *Data
OUT VOID *Data OPTIONAL
);
/**