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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>
(cherry picked from commit 28fd7b090d)
(cherry picked from commit 1c65ddbf24)
This commit is contained in:
Zhang, Chao B
2018-02-08 14:22:39 +08:00
parent d207ef6f5a
commit 007386ef63
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;