@@ -264,7 +264,7 @@ static ssize_t pp_write (struct file * file, const char __user * buf,
 	return bytes_written;
 }
 
-static void pp_irq (void *private)
+static irqreturn_t pp_irq (void *private)
 {
 	struct pp_struct *pp = private;
 

@@ -275,6 +275,8 @@ static void pp_irq (void *private)
 
 	atomic_inc (&pp->irqc);
 	wake_up_interruptible (&pp->irq_wait);
+	
+	return IRQ_HANDLED;
 }
 
 static int register_device (int minor, struct pp_struct *pp)

@@ -151,7 +151,7 @@ static const struct i2c_algo_bit_data parport_algo_data = {
 
 /* ----- I2c and parallel port call-back functions and structures --------- */
 
-static void i2c_parport_irq(void *data)
+static irqreturn_t i2c_parport_irq(void *data)
 {
 	struct i2c_par *adapter = data;
 	struct i2c_client *ara = adapter->ara;

@@ -159,9 +159,12 @@ static void i2c_parport_irq(void *data)
 	if (ara) {
 		dev_dbg(&ara->dev, "SMBus alert received\n");
 		i2c_handle_smbus_alert(ara);
+		return IRQ_HANDLED;
 	} else
 		dev_dbg(&adapter->adapter.dev,
 			"SMBus alert received but no ARA client!\n");
+
+	return IRQ_NONE;
 }
 
 static void i2c_parport_attach(struct parport *port)

@@ -124,7 +124,7 @@ static inline int read_ack(struct pardevice *p)
 }
 
 /* falling edge, prepare to BIN value calculation */
-static void walkera0701_irq_handler(void *handler_data)
+static irqreturn_t walkera0701_irq_handler(void *handler_data)
 {
 	u64 pulse_time;
 	struct walkera_dev *w = handler_data;

@@ -136,7 +136,7 @@ static void walkera0701_irq_handler(void *handler_data)
 	/* cancel timer, if in handler or active do resync */
 	if (unlikely(0 != hrtimer_try_to_cancel(&w->timer))) {
 		w->counter = NO_SYNC;
-		return;
+		return IRQ_HANDLED;
 	}
 
 	if (w->counter < NO_SYNC) {

@@ -166,6 +166,8 @@ static void walkera0701_irq_handler(void *handler_data)
 		w->counter = 0;
 
 	hrtimer_start(&w->timer, ktime_set(0, BIN_SAMPLE), HRTIMER_MODE_REL);
+
+	return IRQ_HANDLED;
 }
 
 static enum hrtimer_restart timer_handler(struct hrtimer

@@ -269,7 +269,7 @@ static __inline__ void par96_rx(struct net_device *dev, struct baycom_state *bc)
 
 /* --------------------------------------------------------------------- */
 
-static void par96_interrupt(void *dev_id)
+static irqreturn_t par96_interrupt(void *dev_id)
 {
 	struct net_device *dev = dev_id;
 	struct baycom_state *bc = netdev_priv(dev);

@@ -292,6 +292,8 @@ static void par96_interrupt(void *dev_id)
 	hdlcdrv_transmitter(dev, &bc->hdrv);
 	hdlcdrv_receiver(dev, &bc->hdrv);
         local_irq_disable();
+
+	return IRQ_HANDLED;
 }
 
 /* --------------------------------------------------------------------- */

@@ -143,7 +143,7 @@ static void plip_bh(struct work_struct *work);
 static void plip_timer_bh(struct work_struct *work);
 
 /* Interrupt handler */
-static void plip_interrupt(void *dev_id);
+static irqreturn_t plip_interrupt(void *dev_id);
 
 /* Functions for DEV methods */
 static int plip_tx_packet(struct sk_buff *skb, struct net_device *dev);

@@ -900,7 +900,7 @@ plip_error(struct net_device *dev, struct net_local *nl,
 }
 
 /* Handle the parallel port interrupts. */
-static void
+static irqreturn_t
 plip_interrupt(void *dev_id)
 {
 	struct net_device *dev = dev_id;

@@ -919,7 +919,7 @@ plip_interrupt(void *dev_id)
 		if ((dev->irq != -1) && (net_debug > 1))
 			printk(KERN_DEBUG "%s: spurious interrupt\n", dev->name);
 		spin_unlock_irqrestore (&nl->lock, flags);
-		return;
+		return IRQ_NONE;
 	}
 
 	if (net_debug > 3)

@@ -948,6 +948,8 @@ plip_interrupt(void *dev_id)
 	}
 
 	spin_unlock_irqrestore(&nl->lock, flags);
+
+	return IRQ_HANDLED;
 }
 
 static int

@@ -523,7 +523,7 @@ void parport_remove_port(struct parport *port)
 struct pardevice *
 parport_register_device(struct parport *port, const char *name,
 			int (*pf)(void *), void (*kf)(void *),
-			void (*irq_func)(void *), 
+			irqreturn_t (*irq_func)(void *),
 			int flags, void *handle)
 {
 	struct pardevice *tmp;

@@ -1006,9 +1006,7 @@ irqreturn_t parport_irq_handler(int irq, void *dev_id)
 {
 	struct parport *port = dev_id;
 
-	parport_generic_irq(port);
-
-	return IRQ_HANDLED;
+	return parport_generic_irq(port);
 }
 
 /* Exported symbols for modules. */

@@ -64,7 +64,7 @@ static inline int signal_is_set(struct parport *port)
 }
 
 /* parport interrupt handler */
-static void parport_irq(void *handle)
+static irqreturn_t parport_irq(void *handle)
 {
 	struct pps_event_time ts_assert, ts_clear;
 	struct pps_client_pp *dev = handle;

@@ -122,7 +122,7 @@ out_assert:
 	/* fire assert event */
 	pps_event(dev->pps, &ts_assert,
 			PPS_CAPTUREASSERT, NULL);
-	return;
+	return IRQ_HANDLED;
 
 out_both:
 	/* fire assert event */

@@ -131,7 +131,7 @@ out_both:
 	/* fire clear event */
 	pps_event(dev->pps, &ts_clear,
 			PPS_CAPTURECLEAR, NULL);
-	return;
+	return IRQ_HANDLED;
 }
 
 static void parport_attach(struct parport *port)

@@ -219,7 +219,7 @@ static void rbuf_write(int signal)
 	wptr = nwptr;
 }
 
-static void lirc_lirc_irq_handler(void *blah)
+static irqreturn_t lirc_lirc_irq_handler(void *blah)
 {
 	struct timeval tv;
 	static struct timeval lasttv;

@@ -230,10 +230,10 @@ static void lirc_lirc_irq_handler(void *blah)
 	unsigned int timeout;
 
 	if (!is_open)
-		return;
+		return IRQ_NONE;
 
 	if (!is_claimed)
-		return;
+		return IRQ_NONE;
 
 #if 0
 	/* disable interrupt */

@@ -241,7 +241,7 @@ static void lirc_lirc_irq_handler(void *blah)
 	  out(LIRC_PORT_IRQ, in(LIRC_PORT_IRQ) & (~LP_PINTEN));
 #endif
 	if (check_pselecd && (in(1) & LP_PSELECD))
-		return;
+		return IRQ_NONE;
 
 #ifdef LIRC_TIMER
 	if (init) {

@@ -265,7 +265,7 @@ static void lirc_lirc_irq_handler(void *blah)
 			 */
 			timer = init_lirc_timer();
 			/* enable_irq(irq); */
-			return;
+			return IRQ_HANDLED;
 		}
 		init = 1;
 	}

@@ -314,6 +314,8 @@ static void lirc_lirc_irq_handler(void *blah)
 	  enable_irq(irq);
 	  out(LIRC_PORT_IRQ, in(LIRC_PORT_IRQ)|LP_PINTEN);
 	*/
+
+	return IRQ_HANDLED;
 }
 
 /*** file operations ***/

@@ -141,7 +141,7 @@ struct pardevice {
 	int (*preempt)(void *);
 	void (*wakeup)(void *);
 	void *private;
-	void (*irq_func)(void *);
+	irqreturn_t (*irq_func)(void *);
 	unsigned int flags;
 	struct pardevice *next;
 	struct pardevice *prev;

@@ -298,7 +298,7 @@ extern void parport_put_port (struct parport *);
 struct pardevice *parport_register_device(struct parport *port, 
 			  const char *name,
 			  int (*pf)(void *), void (*kf)(void *),
-			  void (*irq_func)(void *), 
+			  irqreturn_t (*irq_func)(void *),
 			  int flags, void *handle);
 
 /* parport_unregister unlinks a device from the chain. */

@@ -429,13 +429,17 @@ extern void parport_daisy_deselect_all (struct parport *port);
 extern int parport_daisy_select (struct parport *port, int daisy, int mode);
 
 /* Lowlevel drivers _can_ call this support function to handle irqs.  */
-static inline void parport_generic_irq(struct parport *port)
+static inline irqreturn_t parport_generic_irq(struct parport *port)
 {
+	irqreturn_t ret = IRQ_NONE;
+
 	parport_ieee1284_interrupt (port);
 	read_lock(&port->cad_lock);
 	if (port->cad && port->cad->irq_func)
-		port->cad->irq_func(port->cad->private);
+		ret = port->cad->irq_func(port->cad->private);
 	read_unlock(&port->cad_lock);
+
+	return ret;
 }
 
 /* Prototypes from parport_procfs */