libusb_exit (ctx=0x0) at ../../libusb/core.c:1655
up_device_csr_finalize (object=0x1a4c000) at up-device-csr.c:327
g_object_unref (_object=0x1a4c000) at /build/buildd/glib2.0-2.32.0/./gobject/gobject.c:3018
up_backend_device_new (native=0x1a3e190, backend=0x1a3e1e0) at up-backend.c:139
up_backend_device_add (backend=0x1a3e1e0, native=0x1a3e190) at up-backend.c:229