Fix memory leak after processing udev_device

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 1a5bc0e4ff)

tdecore/tdehw/tdehardwaredevices.cpp

@@ -465,6 +465,7 @@ void TDEHardwareDevices::processHotPluggedHardware() {
 				}
 			}
 		}
+		udev_device_unref(dev);
 	}
 }
 
@@ -2345,6 +2346,7 @@ TDEGenericDevice* TDEHardwareDevices::classifyUnknownDevice(udev_device* dev, TD
 						struct udev_device *parentdev;
 						parentdev = udev_device_new_from_syspath(m_udevStruct, parentsyspathudev.ascii());
 						devicenode = (udev_device_get_devnode(parentdev));
+						udev_device_unref(parentdev);
 					}
 				}
 				else {