Ignore return value

src/device/devicemanager.cpp

@@ -102,7 +102,7 @@ DeviceManager::DeviceManager(Application *app, QObject *parent)
   connect(this, SIGNAL(DeviceCreatedFromDB(DeviceInfo*)), SLOT(AddDeviceFromDB(DeviceInfo*)));
 
   // This reads from the database and contents on the database mutex, which can be very slow on startup.
-  QtConcurrent::run(&thread_pool_, std::bind(&DeviceManager::LoadAllDevices, this));
+  (void)QtConcurrent::run(&thread_pool_, std::bind(&DeviceManager::LoadAllDevices, this));
 
   // This proxy model only shows connected devices
   connected_devices_model_ = new DeviceStateFilterModel(this);