switch (event) {
case RECV_I_RSP: /* Optimize for the common case */
+ if (unlikely(skb->len <= LAP_ADDR_HEADER + LAP_CTRL_HEADER)) {
+ /*
+ * Input validation check: a stir4200/mcp2150
+ * combination sometimes results in an empty i:rsp.
+ * This makes no sense; we can just ignore the frame
+ * and send an rr:cmd immediately. This happens before
+ * changing nr or ns so triggers a retransmit
+ */
+ irlap_wait_min_turn_around(self, &self->qos_tx);
+ irlap_send_rr_frame(self, CMD_FRAME);
+ /* Keep state */
+ break;
+ }
/* FIXME: must check for remote_busy below */
#ifdef CONFIG_IRDA_FAST_RR
/*