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SecurityPkg: Tcg2Smm: Refine type cast in pointer abstraction

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Pointer subtraction is not performed by pointers to elements of the same
array object. Such behavior is undefined by C11 standard and might lead to
potential issues, Refine pointer subtraction by first casting each pointer
to UINTN.

Cc: Hao Wu <hao.a.wu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Chao Zhang <chao.b.zhang@intel.com>
Reviewed-by: Hao Wu <hao.a.wu@intel.com>
This commit is contained in:
Zhang, Chao B
2018-02-08 14:22:39 +08:00
parent 0c8b880223
commit 28fd7b090d
1 changed files with 1 additions and 1 deletions
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SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c
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@@ -543,7 +543,7 @@ UpdatePossibleResource (
//
DataPtr += 2;
if (DataPtr < DataEndPtr) {
SetMem(DataPtr, (UINTN)(DataEndPtr - DataPtr), AML_NOOP_OP);
SetMem(DataPtr, (UINTN)DataEndPtr - (UINTN)DataPtr, AML_NOOP_OP);
}
return EFI_SUCCESS;