--- zzzz-none-000/linux-3.10.107/drivers/atm/atmtcp.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/atm/atmtcp.c	2021-02-04 17:41:59.000000000 +0000
@@ -299,6 +299,7 @@
 	out_vcc = find_vcc(dev, ntohs(hdr->vpi), ntohs(hdr->vci));
 	read_unlock(&vcc_sklist_lock);
 	if (!out_vcc) {
+		result = -EUNATCH;
 		atomic_inc(&vcc->stats->tx_err);
 		goto done;
 	}