master: Don't crash if master socket couldn't be re-opened after settings reload.

diff --git a/src/master/service-monitor.c b/src/master/service-monitor.c
index bb3f04f589cc9e99579b9b64dbd0aec31cb87be0..92935d9d346619b54ed2c270835dac845435477e 100644 (file)
--- a/src/master/service-monitor.c
+++ b/src/master/service-monitor.c
@@ -453,7 +453,8 @@ void services_monitor_start(struct service_list *service_list)
                return;
        service_anvil_monitor_start(service_list);
 
-       if (service_list->io_master == NULL) {
+       if (service_list->io_master == NULL &&
+           service_list->master_fd != -1) {
                service_list->io_master =
                        io_add(service_list->master_fd, IO_READ,
                               master_client_connected, service_list);