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-rw-r--r--UefiCpuPkg/CpuDxe/CpuDxe.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/UefiCpuPkg/CpuDxe/CpuDxe.c b/UefiCpuPkg/CpuDxe/CpuDxe.c
index c5f3bb76f4..6e7498344e 100644
--- a/UefiCpuPkg/CpuDxe/CpuDxe.c
+++ b/UefiCpuPkg/CpuDxe/CpuDxe.c
@@ -1082,7 +1082,7 @@ InitInterruptDescriptorTable (
if ((OldIdtPtr.Base != 0) && ((OldIdtPtr.Limit & 7) == 7)) {
OldIdt = (IA32_IDT_GATE_DESCRIPTOR*) OldIdtPtr.Base;
- OldIdtSize = (OldIdtPtr.Limit + 1) / 8;
+ OldIdtSize = (OldIdtPtr.Limit + 1) / sizeof (IA32_IDT_GATE_DESCRIPTOR);
} else {
OldIdt = NULL;
OldIdtSize = 0;