--- libelwix/src/mem.c	2013/05/30 09:07:33	1.2
+++ libelwix/src/mem.c	2014/01/29 16:42:36	1.3.2.1
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@openbsd-bg.org>
 *
 * $Author: misho $
-* $Id: mem.c,v 1.2 2013/05/30 09:07:33 misho Exp $
+* $Id: mem.c,v 1.3.2.1 2014/01/29 16:42:36 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -12,7 +12,7 @@ terms:
 All of the documentation and software included in the ELWIX and AITNET
 Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
 
-Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
+Copyright 2004 - 2014
 	by Michael Pounov <misho@elwix.org>.  All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
@@ -407,7 +407,8 @@ mpool_free(mpool_t * __restrict mp, void * __restrict 
 	int idx;
 	struct tagAlloc *m, *tmp;
 
-	assert(data);
+	if (!data)
+		return 0;
 	if (!mp) {
 		elwix_SetErr(EINVAL, "Pool not specified");
 		return -1;