Fri Apr 4 11:14:04 EDT 2008 Pekka.Pessi@nokia.com

  * su_addrinfo.c: avoid crash in su_freeaddrinfo() if ai is NULL



git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@8021 d0543943-73ff-0310-b7d9-9358b9ac24b2

libs/sofia-sip/libsofia-sip-ua/su/su_addrinfo.c

@@ -805,6 +805,9 @@ freeaddrinfo(ai)
 {
 	struct addrinfo *next;
 
+	if (ai == NULL)
+		return;
+
 	do {
 		next = ai->ai_next;
 		if (ai->ai_canonname)