- submit_one(dev, "ipt_bytes", type_instance, bs->bytes);
- submit_one(dev, "ipt_packets", type_instance, bs->packets);
+ if (bs != NULL) {
+ submit_one(dev, "ipt_bytes", type_instance, bs->bytes);
+ submit_one(dev, "ipt_packets", type_instance, bs->packets);
+ }
+ if (qs != NULL) {
+ submit_one(dev, "if_tx_errors", type_instance, qs->drops);
+ }