RemoteLinux: Fix bugs introduced by recent refactorings.

Change-Id: I89eeb0bbd4bdc319e21d077d95eb50f31aa23ecd
Reviewed-by: Christian Kandeler <christian.kandeler@nokia.com>

src/plugins/remotelinux/devicemanagermodel.cpp

@@ -56,6 +56,7 @@ DeviceManagerModel::DeviceManagerModel(const LinuxDeviceConfigurations *deviceMa
         SLOT(handleDeviceAdded(QSharedPointer<const LinuxDeviceConfiguration>)));
     connect(deviceManager, SIGNAL(deviceRemoved(int)), SLOT(handleDeviceRemoved(int)));
     connect(deviceManager, SIGNAL(displayNameChanged(int)), SLOT(handleDataChanged(int)));
+    connect(deviceManager, SIGNAL(defaultStatusChanged(int)), SLOT(handleDataChanged(int)));
     connect(deviceManager, SIGNAL(deviceListChanged()), SLOT(handleDeviceListChanged()));
 }
 

src/plugins/remotelinux/linuxdeviceconfigurations.cpp

@@ -362,7 +362,7 @@ LinuxDeviceConfiguration::Id LinuxDeviceConfigurations::unusedId() const
 {
     typedef LinuxDeviceConfiguration::Id IdType;
     for (IdType id = 0; id <= std::numeric_limits<IdType>::max(); ++id) {
-        if (!find(id))
+        if (id != LinuxDeviceConfiguration::InvalidId && !find(id))
             return id;
     }
     QTC_CHECK(false);