[KMTEST:NTOS_CC] Fix buffer size calculation

[reactos.git] / modules / rostests / kmtests / ntos_cc / CcSetFileSizes_drv.c

diff --git a/modules/rostests/kmtests/ntos_cc/CcSetFileSizes_drv.c b/modules/rostests/kmtests/ntos_cc/CcSetFileSizes_drv.c
index 241312c..89bc397 100644 (file)
--- a/modules/rostests/kmtests/ntos_cc/CcSetFileSizes_drv.c
+++ b/modules/rostests/kmtests/ntos_cc/CcSetFileSizes_drv.c
@@ -467,7 +467,7 @@ TestIrpHandler(
 
             if (Length > (Fcb->Header.FileSize.QuadPart - Offset.QuadPart))
             {
-                RtlFillMemory(Buffer, Length - Fcb->Header.FileSize.QuadPart, 0xBD);
+                RtlFillMemory(Buffer, Length - (Fcb->Header.FileSize.QuadPart - Offset.QuadPart), 0xBD);
             }
         }
         else