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-rw-r--r--SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c
index 03e6e52000..b60835ff83 100644
--- a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c
+++ b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c
@@ -535,7 +535,7 @@ 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;