[IrDA]: Resend frames on timeout.

When final timer expires, it might also mean that the i:cmd wasn't
received properly. If we have rejected frames, we can try to resend them.
Signed-off-by: NRobie Basak <rb-oss-1@justgohome.co.uk>
Signed-off-by: NSamuel Ortiz <samuel@sortiz.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/irda/irlap_event.c

@@ -1514,9 +1514,15 @@ static int irlap_state_nrm_p(struct irlap_cb *self, IRLAP_EVENT event,
 
 		/* N2 is the disconnect timer. Until we reach it, we retry */
 		if (self->retry_count < self->N2) {
-			/* Retry sending the pf bit to the secondary */
-			irlap_wait_min_turn_around(self, &self->qos_tx);
-			irlap_send_rr_frame(self, CMD_FRAME);
+			if (skb_peek(&self->wx_list) == NULL) {
+				/* Retry sending the pf bit to the secondary */
+				IRDA_DEBUG(4, "nrm_p: resending rr");
+				irlap_wait_min_turn_around(self, &self->qos_tx);
+				irlap_send_rr_frame(self, CMD_FRAME);
+			} else {
+				IRDA_DEBUG(4, "nrm_p: resend frames");
+				irlap_resend_rejected_frames(self, CMD_FRAME);
+			}
 
 			irlap_start_final_timer(self, self->final_timeout);
 			self->retry_count++;