--- Modules/mmapmodule.c.orig	2009-06-12 12:44:46.000000000 +0200
+++ Modules/mmapmodule.c	2009-06-12 12:44:18.000000000 +0200
@@ -1,7 +1,7 @@
 /*
  /  Author: Sam Rushing <rushing@nightmare.com>
  /  Hacked for Unix by AMK
- /  $Id$
+ /  $Id: mmapmodule.c 70980 2009-04-01 20:26:13Z jack.diederich $
 
  / Modified to support mmap with offset - to map a 'window' of a file
  /   Author:  Yotam Medini  yotamm@mellanox.co.il
@@ -158,7 +158,8 @@
 #endif /* MS_WINDOWS */
 
 #ifdef UNIX
-	(void) close(self->fd);
+	if (0 <= self->fd)
+		(void) close(self->fd);
 	self->fd = -1;
 	if (self->data != NULL) {
 		munmap(self->data, self->size);