minor fix

reactos/lib/kernel32/file

diff -u -r1.1 -r1.2
--- hardlink.c	14 Mar 2004 09:21:42 -0000	1.1
+++ hardlink.c	14 Mar 2004 10:16:18 -0000	1.2
@@ -1,4 +1,4 @@

-/* $Id: hardlink.c,v 1.1 2004/03/14 09:21:42 weiden Exp $

+/* $Id: hardlink.c,v 1.2 2004/03/14 10:16:18 weiden Exp $

  *
  * COPYRIGHT:       See COPYING in the top level directory
  * PROJECT:         ReactOS system libraries

@@ -79,7 +79,8 @@

     return FALSE;
   }
   

-  if(!RtlGetFullPathName_U((LPWSTR)lpExistingFileName, NeededSize, lpNtLinkTarget, &lpFilePart))

+  if(!RtlGetFullPathName_U((LPWSTR)lpExistingFileName, NeededSize, lpNtLinkTarget, &lpFilePart) ||
+     (*lpNtLinkTarget) == L'\0')

   {
     RtlFreeHeap(RtlGetProcessHeap(), 0, lpNtLinkTarget);
     RtlFreeUnicodeString(&LinkTarget);