Index: channels/chan_zap.c
===================================================================
RCS file: /usr/cvsroot/asterisk/channels/chan_zap.c,v
retrieving revision 1.355
diff -u -r1.355 chan_zap.c
--- channels/chan_zap.c	5 Oct 2004 20:55:31 -0000	1.355
+++ channels/chan_zap.c	6 Oct 2004 23:43:20 -0000
@@ -6556,6 +6556,7 @@
 			if (working->channel > tmp->channel) {
 				tmp->next = *wlist;
 				tmp->prev = NULL;
+				(*wlist)->prev = tmp;
 				*wlist = tmp;
 			} else {
 			/* go through all the members and put the member in the right place */