> @@ -400,7 +400,7 @@ static int netdev_trig_notify(struct notifier_block *nb, > > cancel_delayed_work_sync(&trigger_data->work); > > - spin_lock_bh(&trigger_data->lock); > + mutex_lock(&trigger_data->lock); I'm not sure you can convert a spin_lock_bh() in a mutex_lock(). Did you check this? What context is the notifier called in? Andrew