From 9d9cb0481fa39dea4ada21be3b46ec84637b255c Mon Sep 17 00:00:00 2001
From: rapster <>
Date: Thu, 6 Apr 2017 07:34:29 +0000
Subject: [PATCH] 74_Unifi: Can't use an undefined value as an ARRAY reference
 at ./FHEM/74_Unifi.pm line 847., Forum #40287

git-svn-id: https://svn.fhem.de/fhem/trunk@13910 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 fhem/FHEM/74_Unifi.pm | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fhem/FHEM/74_Unifi.pm b/fhem/FHEM/74_Unifi.pm
index cc4af1439..bd58b21e7 100644
--- a/fhem/FHEM/74_Unifi.pm
+++ b/fhem/FHEM/74_Unifi.pm
@@ -843,8 +843,8 @@ sub Unifi_SetHealthReadings($) {
     readingsBulkUpdate($hash,'-UC_wlan_users',$hash->{wlan_health}->{num_user});
     readingsBulkUpdate($hash,'-UC_wlan_accesspoints',$hash->{wlan_health}->{num_ap});
     readingsBulkUpdate($hash,'-UC_wlan_guests',$hash->{wlan_health}->{num_guest});
-    readingsBulkUpdate($hash,'-UC_unarchived_alerts',scalar @{$hash->{alerts_unarchived}});
-    readingsBulkUpdate($hash,'-UC_events',scalar(@{$hash->{events}}).' (last '.$hash->{unifi}->{eventPeriod}.'h)');
+    readingsBulkUpdate($hash,'-UC_unarchived_alerts',scalar @{$hash->{alerts_unarchived}}) if(ref($hash->{alerts_unarchived}) eq 'ARRAY'); 
+    readingsBulkUpdate($hash,'-UC_events',scalar(@{$hash->{events}}).' (last '.$hash->{unifi}->{eventPeriod}.'h)') if(ref($hash->{events}) eq 'ARRAY');
     
     return undef;
 }