flush_scheduled_work() is deprecated and scheduled to be removed.
technisat-usb2 already sync-cancels the only work item it uses and
there's no reason for it to call flush_scheduled_work().  Don't use
it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
        /* work and stuff was only created when the device is is hot-state */
        if (dev != NULL) {
                struct technisat_usb2_state *state = dev->priv;
-               if (state != NULL) {
+               if (state != NULL)
                        cancel_delayed_work_sync(&state->green_led_work);
-                       flush_scheduled_work();
-               }
        }
 
        dvb_usb_device_exit(intf);