src: three crash reports

(cherry picked from commit 50e4df6c)

src/etc/inc/services.inc

@@ -2641,7 +2641,7 @@ function services_get()
           $pconfig = array();
           $pconfig['name'] = "relayd";
           $pconfig['description'] = gettext("Server load balancing daemon");
-          $pconfig['php']['restart'] = array('relayd_configure_full', 'filter_configure');
+          $pconfig['php']['restart'] = array('relayd_configure', 'filter_configure');
           $pconfig['php']['start'] = array('relayd_configure', 'filter_configure');
           $services[] = $pconfig;
     }

src/www/firewall_rules_edit.php

@@ -37,6 +37,9 @@ $tcpflags = array("syn", "ack", "fin", "rst", "psh", "urg", "ece", "cwr");
 
 /* OS types, request from backend */
 $ostypes = json_decode(configd_run('filter list osfp json'));
+if ($ostypes == null) {
+    $ostypes = array();
+}
 
 /**
  * build array with interface options for this form

src/www/widgets/widgets/load_balancer_status.widget.php

@@ -56,10 +56,8 @@ $rdr_a = get_lb_redirects();
 $relay_hosts = get_lb_summary();
 
 $lb_logfile = '/var/log/relayd.log';
-$nentries = $config['syslog']['nentries'];
-if (!$nentries) {
-    $nentries = 50;
-}
+
+$nentries = isset($config['syslog']['nentries']) ? $config['syslog']['nentries'] : 50;
 
 ?>