From 70d1f986a64e59a58ca52d5c036c2ac33300b078 Mon Sep 17 00:00:00 2001
From: rudolfkoenig <rudolfkoenig@2b470e98-0d58-463d-a4d8-8e2adae1ed80>
Date: Tue, 18 Jun 2013 08:50:10 +0000
Subject: [PATCH] summaryFn undef return case fixed

git-svn-id: https://svn.fhem.de/fhem/trunk@3304 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 fhem/FHEM/01_FHEMWEB.pm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fhem/FHEM/01_FHEMWEB.pm b/fhem/FHEM/01_FHEMWEB.pm
index 58ffe4ad9..e4041f28f 100755
--- a/fhem/FHEM/01_FHEMWEB.pm
+++ b/fhem/FHEM/01_FHEMWEB.pm
@@ -2485,8 +2485,9 @@ FW_devState($$@)
        $extPage = \%hash;
     }
     no strict "refs";
-    $txt = &{$sfn}($FW_wname, $d, $FW_room, $extPage);
+    my $newtxt = &{$sfn}($FW_wname, $d, $FW_room, $extPage);
     use strict "refs";
+    $txt = $newtxt if(defined($newtxt)); # As specified
   }
 
   return ($allSets, $cmdList, $txt);