Hi Samuel,
> @@ -504,12 +504,10 @@ static int nfc_genl_rcv_nl_event(struct
> notifier_block *this,
> dev = nfc_device_iter_next(&iter);
>
> while (dev) {
> - mutex_lock(&dev->genl_data.genl_data_mutex);
> if (dev->genl_data.poll_req_pid == n->pid) {
> nfc_stop_poll(dev);
> dev->genl_data.poll_req_pid = 0;
> }
> - mutex_unlock(&dev->genl_data.genl_data_mutex);
> dev = nfc_device_iter_next(&iter);
> }
Please note that the function nfc_stop_poll might also sleep, since mutex_lock is also called inside:
nfc_genl_rcv_nl_event -> nfc_stop_poll -> device_lock -> mutex_lock.
BR,
Ilan--
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