[477571] Fix socket leak with bridges.

Don't leak sockets when an outgoing bridge connection with multiple
addresses is rejected.

Thanks to Johnny Egeland.

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=477571

ChangeLog.txt

@@ -1,3 +1,11 @@
+1.x.x - 2015xxxx
+================
+
+Broker:
+- Don't leak sockets when outgoing bridge with multiple addresses cannot
+  connect. Closes #477571.
+
+
 1.4.3 - 20150818
 ================
 
@@ -22,6 +30,7 @@ Client library:
 Clients:
 - Report error string on connection failure rather than error code.
 
+
 1.4.2 - 20150507
 ================
 

src/loop.c

@@ -178,7 +178,7 @@ int mosquitto_main_loop(struct mosquitto_db *db, mosq_sock_t *listensock, int li
 							&& context->bridge->cur_address != 0
 							&& now > context->bridge->primary_retry){
 
-						if(_mosquitto_try_connect(context, context->bridge->addresses[0].address, context->bridge->addresses[0].port, &bridge_sock, NULL, false) == MOSQ_ERR_SUCCESS){
+						if(_mosquitto_try_connect(context, context->bridge->addresses[0].address, context->bridge->addresses[0].port, &bridge_sock, NULL, false) <= 0){
 							COMPAT_CLOSE(bridge_sock);
 							_mosquitto_socket_close(db, context);
 							context->bridge->cur_address = context->bridge->address_count-1;