[PATCH] irport fixes

ir259_irport-6.diff :
	o [CORRECT] fix module ownership in irport
	o [CORRECT] Properly initialise dev->trans_start in irport
	o [CORRECT] Add delay to drain the Tx fifo to avoid corrupting
		last outgoing Tx byte when changing speed
	o [FEATURE] Safer locking around speed change in irport_hard_xmit()
	o [FEATURE] Enforce half duplex operation in interrupt handler
	o [FEATURE] Optimise interrupt handler for latency and I/O ops
	o [FEATURE] Optimise Tx path in irport_write()
	o [FEATURE] Add ZeroCopy Rx
	o [FEATURE] Better debugging in watchdog timeout
	o [FEATURE] Various other cleanups and comments

include/net/irda/irport.h

@@ -67,6 +67,7 @@ struct irport_cb {
 	__u32 new_speed;
 	int mode;
 	int index;                 /* Instance index */
+	int transmitting;	   /* Are we transmitting ? */
 
 	spinlock_t lock;           /* For serializing operations */