[ROSTESTS] fix x64 build and fix/disable warnings

[reactos.git] / modules / rostests / kmtests / ntos_io / IoFilesystem.c

diff --git a/modules/rostests/kmtests/ntos_io/IoFilesystem.c b/modules/rostests/kmtests/ntos_io/IoFilesystem.c
index ff3a502..0c3f04d 100644 (file)
--- a/modules/rostests/kmtests/ntos_io/IoFilesystem.c
+++ b/modules/rostests/kmtests/ntos_io/IoFilesystem.c
@@ -242,8 +242,8 @@ Substitute(
     PWCHAR Dest = Buffer;
     UNICODE_STRING String;
 
-    SystemDriveLength = wcslen(SystemDriveName) * sizeof(WCHAR);
-    SystemRootLength = wcslen(SystemRootName) * sizeof(WCHAR);
+    SystemDriveLength = (ULONG)wcslen(SystemDriveName) * sizeof(WCHAR);
+    SystemRootLength = (ULONG)wcslen(SystemRootName) * sizeof(WCHAR);
 
     RtlInitUnicodeString(&String, Template);
     ASSERT(String.Length % sizeof(WCHAR) == 0);