clear memory before passing to ASTOBJ_INIT

Mayne it is unnecessary, but otherwise there code believes
the mutex is already initialized.



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@26166 65c4cc65-6c06-0410-ace0-fbb531ad65f3

netsock.c

@@ -149,7 +149,7 @@ struct ast_netsock *ast_netsock_bindaddr(struct ast_netsock_list *list, struct i
 	if (setsockopt(netsocket, IPPROTO_IP, IP_TOS, &tos, sizeof(tos))) 
 		ast_log(LOG_WARNING, "Unable to set TOS to %d\n", tos);
 
-	ns = malloc(sizeof(struct ast_netsock));
+	ns = ast_calloc(1, sizeof(struct ast_netsock));
 	if (ns) {
 		/* Establish I/O callback for socket read */
 		ioref = ast_io_add(ioc, netsocket, callback, AST_IO_IN, ns);