fix dbus error on device add or device remove
fix dbus error on device add or device remove

Change-Id: Ib7a454226db8cbf95ec1a9f9ccd27026e167ed8b
Signed-off-by: Timothy Asir J <9ae03c403dd2d82025ba1aad4fc83885ac926861@redhat.com>
Bug-url: https://bugzilla.redhat.com/show_bug.cgi?id=1314486
Signed-off-by: Timothy Asir J <9ae03c403dd2d82025ba1aad4fc83885ac926861@redhat.com>

skyrings/skynet,skyrings/skynet