From fbfef9818b12f873e16db7f0a301e36d8e7bc2d3 Mon Sep 17 00:00:00 2001
From: borisneubert <borisneubert@users.noreply.github.com>
Date: Mon, 26 Mar 2018 17:12:54 +0000
Subject: [PATCH] 10_OWServer: consider case that owserver has no version
 information

git-svn-id: https://svn.fhem.de/fhem/trunk@16495 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 fhem/FHEM/10_OWServer.pm | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/fhem/FHEM/10_OWServer.pm b/fhem/FHEM/10_OWServer.pm
index 782856c9c..3d31a5565 100644
--- a/fhem/FHEM/10_OWServer.pm
+++ b/fhem/FHEM/10_OWServer.pm
@@ -221,10 +221,15 @@ sub OWServer_loadOWNet($) {
   my $owserver= OWServer_TryOpenDev($hash);
   if(defined($owserver)) {
     my $version= $owserver->read("/system/configuration/version");
-    Log3 $name, 3, "$name: owserver version $version found.";
-    $hash->{OWSERVER_VERSION}= $version;
-    if($OWNet_version eq $version) {
-      Log3 $name, 3, "$name: Matching OWNet version already loaded.";
+    if(defined($version)) {
+      Log3 $name, 3, "$name: owserver version $version found.";
+      $hash->{OWSERVER_VERSION}= $version;
+      if($OWNet_version eq $version) {
+        Log3 $name, 3, "$name: Matching OWNet version already loaded.";
+        return $OWNet_version;
+      }
+    } else {
+      Log3 $name, 2, "$name: Could not read owserver version, using OWNet version $OWNet_version.";
       return $OWNet_version;
     }
     my $libfilename= OWServer_getOWNetfilename($version);