From e2248578a3a772d038c8a0a8aaa98d0018fe8ae9 Mon Sep 17 00:00:00 2001
From: justme-1968 <justme-1968@users.noreply.github.com>
Date: Fri, 9 Jan 2015 12:00:47 +0000
Subject: [PATCH] 33_readingsGroup.pm: fixed uninitialized value warning

git-svn-id: https://svn.fhem.de/fhem/trunk@7479 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 fhem/FHEM/33_readingsGroup.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fhem/FHEM/33_readingsGroup.pm b/fhem/FHEM/33_readingsGroup.pm
index 9c3f6621b..0c9a6a263 100644
--- a/fhem/FHEM/33_readingsGroup.pm
+++ b/fhem/FHEM/33_readingsGroup.pm
@@ -96,7 +96,7 @@ readingsGroup_updateDevices($;$)
     } else {
       my @device = split(":", $param);
 
-      if( $device[1] =~ m/^FILTER=/ ) {
+      if( $device[1] && $device[1] =~ m/^FILTER=/ ) {
         my $devspec = shift(@device);
         while( @device && $device[0] =~ m/^FILTER=/ ) {
           $devspec .= ":";