Jean II was right: you have to re-charge the final timer when resending 
rejected frames. Otherwise it triggers at a wrong time and can break the 
currently running communication. Reproducible under rt-preempt.

Signed-off-by: G. Liakhovetski <[EMAIL PROTECTED]>
Signed-off-by: Samuel Ortiz <[EMAIL PROTECTED]>

Index: net-2.6-quilt/net/irda/irlap_event.c
===================================================================
--- net-2.6-quilt.orig/net/irda/irlap_event.c   2007-05-29 09:36:09.000000000 
+0300
+++ net-2.6-quilt/net/irda/irlap_event.c        2007-05-29 09:38:19.000000000 
+0300
@@ -1418,14 +1418,14 @@
                 */
                self->remote_busy = FALSE;
 
+               /* Stop final timer */
+               del_timer(&self->final_timer);
+
                /*
                 *  Nr as expected?
                 */
                ret = irlap_validate_nr_received(self, info->nr);
                if (ret == NR_EXPECTED) {
-                       /* Stop final timer */
-                       del_timer(&self->final_timer);
-
                        /* Update Nr received */
                        irlap_update_nr_received(self, info->nr);
 
@@ -1457,14 +1457,12 @@
 
                        /* Resend rejected frames */
                        irlap_resend_rejected_frames(self, CMD_FRAME);
-
-                       /* Final timer ??? Jean II */
+                       irlap_start_final_timer(self, self->final_timeout * 2);
 
                        irlap_next_state(self, LAP_NRM_P);
                } else if (ret == NR_INVALID) {
                        IRDA_DEBUG(1, "%s(), Received RR with "
                                   "invalid nr !\n", __FUNCTION__);
-                       del_timer(&self->final_timer);
 
                        irlap_next_state(self, LAP_RESET_WAIT);
 

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