From d80cdc67de124e7776ce72d7eac403b0db75d799 Mon Sep 17 00:00:00 2001
From: justme-1968 <justme-1968@users.noreply.github.com>
Date: Fri, 6 Dec 2013 09:42:52 +0000
Subject: [PATCH] fixed error messages in fhem log for unknown messages

git-svn-id: https://svn.fhem.de/fhem/trunk@4329 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 fhem/FHEM/36_LaCrosse.pm | 6 +++---
 fhem/FHEM/36_PCA301.pm   | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/fhem/FHEM/36_LaCrosse.pm b/fhem/FHEM/36_LaCrosse.pm
index 4e8f1818d..c5745c889 100644
--- a/fhem/FHEM/36_LaCrosse.pm
+++ b/fhem/FHEM/36_LaCrosse.pm
@@ -123,7 +123,7 @@ LaCrosse_Parse($$)
   } else {
     DoTrigger($name, "UNKNOWNCODE $msg");
     Log3 $name, 3, "$name: Unknown code $msg, help me!";
-    return undef;
+    return "";
   }
 
   my $raddr = $addr;
@@ -133,10 +133,10 @@ LaCrosse_Parse($$)
   if( !$modules{LaCrosse}{defptr}{$raddr} ) {
     Log3 $name, 3, "LaCrosse Unknown device $rname, please define it";
 
-    return undef if( !$hash->{LaCrossePair} );
+    return "" if( !$hash->{LaCrossePair} );
 
     return "UNDEFINED LaCrosse_$rname LaCrosse $raddr" if( $battery_new || $hash->{LaCrossePair} == 2 );
-    return undef;
+    return "";
   }
 
   $rhash->{battery_new} = $battery_new;
diff --git a/fhem/FHEM/36_PCA301.pm b/fhem/FHEM/36_PCA301.pm
index 2583ac382..f2a4f8ee9 100644
--- a/fhem/FHEM/36_PCA301.pm
+++ b/fhem/FHEM/36_PCA301.pm
@@ -196,7 +196,7 @@ PCA301_Parse($$)
   } else {
     DoTrigger($name, "UNKNOWNCODE $msg");
     Log3 $name, 3, "$name: Unknown code $msg, help me!";
-    return undef;
+    return "";
   }
 
   my $raddr = $addr;