From 2e79b0e7d2f5016a5fd9a9cad071812b5e1c2068 Mon Sep 17 00:00:00 2001
From: markusbloch <markusbloch@2b470e98-0d58-463d-a4d8-8e2adae1ed80>
Date: Fri, 9 Nov 2012 20:46:43 +0000
Subject: [PATCH] stability improvements

git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@2104 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 fhem/FHEM/71_YAMAHA_AVR.pm | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fhem/FHEM/71_YAMAHA_AVR.pm b/fhem/FHEM/71_YAMAHA_AVR.pm
index 4baacff6d..b42f60ca6 100755
--- a/fhem/FHEM/71_YAMAHA_AVR.pm
+++ b/fhem/FHEM/71_YAMAHA_AVR.pm
@@ -442,6 +442,7 @@ sub getModel($$)
 {
     my ($hash, $address) = @_;
     my $response = GetFileFromURL("http://".$address."/YamahaRemoteControl/desc.xml");
+    return undef unless(defined($response));
     if($response =~ /<Unit_Description.* Unit_Name="(.+?)">/)
     {
         $hash->{MODEL} = $1;
@@ -453,6 +454,7 @@ sub getInputs($$)
 
     my ($hash, $address) = @_;  
     my $response = SendCommand($address, "<YAMAHA_AV cmd=\"GET\"><Main_Zone><Input><Input_Sel_Item>GetParam</Input_Sel_Item></Input></Main_Zone></YAMAHA_AV>");
+    return undef unless (defined($response));
     $response =~ s/></>\n</g;
     my @inputs = split("\n", $response);