make sure we hide the scan progress dialog even if there is no progress at all

(most likely the case when there are no devices found at all)

svn path=/trunk/extragear/sysadmin/partitionmanager/; revision=1119566

TODO

@@ -17,9 +17,6 @@ Bugs to fix for 1.1:
 
 * make sure the default file system can indeed be created
 
-* Make sure progress dialog when scanning is hidden even if there are no devices
-  to scan.
-
 * handling of illegal values in the size dialog spin boxes is not correct: we
   need to make use of the validator, not just overwrite with the previous value
   if the new one is not legal. i.e., we must constantly update the valid ranges

src/gui/mainwindow.cpp

@@ -614,6 +614,8 @@ void MainWindow::on_m_DeviceScanner_finished()
 {
 #if !defined(NO_THREADED_DEVICE_SCANNER)
 	QReadLocker lockDevices(&operationStack().lock());
+
+	scanProgressDialog().setProgress(100);
 #endif
 
 	if (!operationStack().previewDevices().isEmpty())