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MdeModulePkg PiSmmCore: Update FreePages to handle zero address and pages 

https://bugzilla.tianocore.org/show_bug.cgi?id=278

Zero memory address or zero number pages are invalid to SmmFreePages().

Cc: Star Zeng <star.zeng@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
This commit is contained in:
Liming Gao 2016-12-01 14:47:55 +08:00
parent d5aef955b9
commit ddfae2640c
2 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
MdeModulePkg/Core/PiSmmCore/Page.c
View File

@ -861,7 +861,7 @@ InternalMergeNodes (
@param[in] AddRegion If this memory is new added region.
@retval EFI_NOT_FOUND Could not find the entry that covers the range.
@retval EFI_INVALID_PARAMETER Address not aligned.
@retval EFI_INVALID_PARAMETER Address not aligned, Address is zero or NumberOfPages is zero.
@return EFI_SUCCESS Pages successfully freed.
**/
@ -875,7 +875,7 @@ SmmInternalFreePagesEx (
LIST_ENTRY *Node;
FREE_PAGE_LIST *Pages;
if ((Memory & EFI_PAGE_MASK) != 0) {
if (((Memory & EFI_PAGE_MASK) != 0) || (Memory == 0) || (NumberOfPages == 0)) {
return EFI_INVALID_PARAMETER;
}
@ -933,7 +933,7 @@ SmmInternalFreePagesEx (
@param[in] NumberOfPages The number of pages to free.
@retval EFI_NOT_FOUND Could not find the entry that covers the range.
@retval EFI_INVALID_PARAMETER Address not aligned.
@retval EFI_INVALID_PARAMETER Address not aligned, Address is zero or NumberOfPages is zero.
@return EFI_SUCCESS Pages successfully freed.
**/
@ -954,7 +954,7 @@ SmmInternalFreePages (
@param NumberOfPages The number of pages to free.
@retval EFI_NOT_FOUND Could not find the entry that covers the range.
@retval EFI_INVALID_PARAMETER Address not aligned.
@retval EFI_INVALID_PARAMETER Address not aligned, Address is zero or NumberOfPages is zero.
@return EFI_SUCCESS Pages successfully freed.
**/

4
MdeModulePkg/Core/PiSmmCore/PiSmmCore.h
View File

@ -312,7 +312,7 @@ SmmInternalAllocatePages (
@param NumberOfPages The number of pages to free
@retval EFI_NOT_FOUND Could not find the entry that covers the range
@retval EFI_INVALID_PARAMETER Address not aligned
@retval EFI_INVALID_PARAMETER Address not aligned, Address is zero or NumberOfPages is zero.
@return EFI_SUCCESS Pages successfully freed.
**/
@ -330,7 +330,7 @@ SmmFreePages (
@param NumberOfPages The number of pages to free
@retval EFI_NOT_FOUND Could not find the entry that covers the range
@retval EFI_INVALID_PARAMETER Address not aligned
@retval EFI_INVALID_PARAMETER Address not aligned, Address is zero or NumberOfPages is zero.
@return EFI_SUCCESS Pages successfully freed.
**/