[PATCH] irqs: ISDN

Update ISDN for the new IRQ API.

drivers/isdn/act2000/act2000_isa.c

@@ -69,7 +69,7 @@ act2000_isa_detect(unsigned short portbase)
         return ret;
 }
 
-static void
+static irqreturn_t
 act2000_isa_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
         act2000_card *card = irq2card_map[irq];
@@ -78,7 +78,7 @@ act2000_isa_interrupt(int irq, void *dev_id, struct pt_regs *regs)
         if (!card) {
                 printk(KERN_WARNING
                        "act2000: Spurious interrupt!\n");
-                return;
+                return IRQ_NONE;
         }
         istatus = (inb(ISA_PORT_ISR) & 0x07);
         if (istatus & ISA_ISR_OUT) {
@@ -95,6 +95,7 @@ act2000_isa_interrupt(int irq, void *dev_id, struct pt_regs *regs)
         }
 	if (istatus)
 		printk(KERN_DEBUG "act2000: ?IRQ %d %02x\n", irq, istatus);
+	return IRQ_HANDLED;
 }
 
 static void

drivers/isdn/eicon/eicon.h

@@ -14,6 +14,8 @@
 #ifndef eicon_h
 #define eicon_h
 
+#include <linux/interrupt.h>
+
 #define EICON_IOCTL_SETMMIO   0
 #define EICON_IOCTL_GETMMIO   1
 #define EICON_IOCTL_SETIRQ    2
@@ -364,7 +366,7 @@ extern __inline__ void eicon_schedule_ack(eicon_card *card)
 
 extern int eicon_addcard(int, int, int, char *, int);
 extern void eicon_io_transmit(eicon_card *card);
-extern void eicon_irq(int irq, void *dev_id, struct pt_regs *regs);
+extern irqreturn_t eicon_irq(int irq, void *dev_id, struct pt_regs *regs);
 extern void eicon_io_rcv_dispatch(eicon_card *ccard);
 extern void eicon_io_ack_dispatch(eicon_card *ccard);
 #ifdef CONFIG_MCA

drivers/isdn/eicon/eicon_idi.c

@@ -3097,7 +3097,7 @@ eicon_idi_manage(eicon_card *card, eicon_manifbuf *mb)
 {
 	int l = 0;
 	int ret = 0;
-	int timeout;
+	unsigned long timeout;
 	int i;
         struct sk_buff *skb;
         struct sk_buff *skb2;

drivers/isdn/eicon/eicon_io.c

@@ -501,7 +501,7 @@ eicon_io_transmit(eicon_card *ccard) {
 /*
  * IRQ handler 
  */
-void
+irqreturn_t
 eicon_irq(int irq, void *dev_id, struct pt_regs *regs) {
 	eicon_card *ccard = (eicon_card *)dev_id;
         eicon_isa_card *isa_card;
@@ -521,7 +521,7 @@ eicon_irq(int irq, void *dev_id, struct pt_regs *regs) {
 
         if (!ccard) {
                 eicon_log(ccard, 1, "eicon_irq: spurious interrupt %d\n", irq);
-                return;
+                return IRQ_NONE;
         }
 
 	if (ccard->type == EICON_CTYPE_QUADRO) {
@@ -554,7 +554,7 @@ eicon_irq(int irq, void *dev_id, struct pt_regs *regs) {
 			break;
 		default:
                 	eicon_log(ccard, 1, "eicon_irq: unsupported card-type!\n");
-			return;
+			return IRQ_NONE;
 	}
 
 	if (*irqprobe) {
@@ -577,7 +577,7 @@ eicon_irq(int irq, void *dev_id, struct pt_regs *regs) {
 				(*irqprobe)++;
 				break;
 		}
-		return;
+		return IRQ_HANDLED;
 	}
 
 	switch(ccard->type) {
@@ -588,7 +588,7 @@ eicon_irq(int irq, void *dev_id, struct pt_regs *regs) {
 		case EICON_CTYPE_S2M:
 			if (!(readb(isa_card->intack))) { /* card did not interrupt */
 				eicon_log(ccard, 1, "eicon: IRQ: card reports no interrupt!\n");
-				return;
+				return IRQ_NONE;
 			} 
 			break;
 	}
@@ -744,6 +744,6 @@ eicon_irq(int irq, void *dev_id, struct pt_regs *regs) {
 			break;
 	}
 
-  return;
+  return IRQ_HANDLED;
 }
 #endif

drivers/isdn/eicon/linio.c

@@ -36,7 +36,7 @@ ux_diva_card_t card_pool[MAX_CARDS];
 
 void UxPause(long int ms)
 {
-	int timeout = jiffies + ((ms * HZ) / 1000);
+	unsigned long timeout = jiffies + ((ms * HZ) / 1000);
 
 	while (time_before(jiffies, timeout));
 }
@@ -577,7 +577,7 @@ void UxCardIoOutBuffer(ux_diva_card_t *card, void *AttachedDivasIOBase, void *ad
     return;
 }
 
-void 	Divasintr(int arg, void *unused, struct pt_regs *unused_regs)
+irqreturn_t Divasintr(int arg, void *unused, struct pt_regs *unused_regs)
 {
 	int i;
 	card_t *card = NULL;
@@ -602,7 +602,7 @@ void 	Divasintr(int arg, void *unused, struct pt_regs *unused_regs)
 		}
 	}
 
-	return;
+	return IRQ_HANDLED;
 }
 
 
@@ -680,7 +680,7 @@ long UxCardLock(ux_diva_card_t *card)
 	return flags;
 }
 
-void UxCardUnlock(ux_diva_card_t *card, long ipl)
+void UxCardUnlock(ux_diva_card_t *card, unsigned long ipl)
 {
 	spin_unlock_irqrestore(&diva_lock, ipl);
 }

drivers/isdn/eicon/uxio.h

@@ -59,7 +59,7 @@ void	UxCardHandleFree(ux_diva_card_t *card);
  */
 
 long		UxCardLock(ux_diva_card_t *card);
-void	UxCardUnlock(ux_diva_card_t *card, long ipl);
+void	UxCardUnlock(ux_diva_card_t *card, unsigned long ipl);
 
 /*
  * Set the mapping address for PCI cards

drivers/isdn/hardware/avm/avmcard.h

@@ -12,6 +12,7 @@
 
 #include <linux/spinlock.h>
 #include <linux/list.h>
+#include <linux/interrupt.h>
 
 #define	AVMB1_PORTLEN		0x1f
 #define AVM_MAXVERSION		8
@@ -555,7 +556,7 @@ void b1_register_appl(struct capi_ctr *ctrl, u16 appl,
 void b1_release_appl(struct capi_ctr *ctrl, u16 appl);
 u16  b1_send_message(struct capi_ctr *ctrl, struct sk_buff *skb);
 void b1_parse_version(avmctrl_info *card);
-void b1_interrupt(int interrupt, void *devptr, struct pt_regs *regs);
+irqreturn_t b1_interrupt(int interrupt, void *devptr, struct pt_regs *regs);
 
 int b1ctl_read_proc(char *page, char **start, off_t off,
         		int count, int *eof, struct capi_ctr *ctrl);
@@ -568,7 +569,7 @@ void avmcard_dma_free(avmcard_dmainfo *);
 int b1pciv4_detect(avmcard *card);
 int t1pci_detect(avmcard *card);
 void b1dma_reset(avmcard *card);
-void b1dma_interrupt(int interrupt, void *devptr, struct pt_regs *regs);
+irqreturn_t b1dma_interrupt(int interrupt, void *devptr, struct pt_regs *regs);
 
 int b1dma_load_firmware(struct capi_ctr *ctrl, capiloaddata *data);
 void b1dma_reset_ctr(struct capi_ctr *ctrl);

drivers/isdn/hardware/avm/b1.c

@@ -491,7 +491,7 @@ void b1_parse_version(avmctrl_info *cinfo)
 
 /* ------------------------------------------------------------- */
 
-void b1_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
+irqreturn_t b1_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
 {
 	avmcard *card = devptr;
 	avmctrl_info *cinfo = &card->ctrlinfo[0];
@@ -506,7 +506,7 @@ void b1_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
 	unsigned WindowSize;
 
 	if (!b1_rx_full(card->port))
-	   return;
+	   return IRQ_NONE;
 
 	b1cmd = b1_get_byte(card->port);
 
@@ -619,12 +619,13 @@ void b1_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
 
 	case 0xff:
 		printk(KERN_ERR "%s: card removed ?\n", card->name);
-		return;
+		return IRQ_NONE;
 	default:
 		printk(KERN_ERR "%s: b1_interrupt: 0x%x ???\n",
 				card->name, b1cmd);
-		return;
+		return IRQ_HANDLED;
 	}
+	return IRQ_HANDLED;
 }
 
 /* ------------------------------------------------------------- */

drivers/isdn/hardware/avm/b1dma.c

@@ -618,11 +618,12 @@ static void b1dma_handle_interrupt(avmcard *card)
 	spin_unlock(&card->lock);
 }
 
-void b1dma_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
+irqreturn_t b1dma_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
 {
 	avmcard *card = devptr;
 
 	b1dma_handle_interrupt(card);
+	return IRQ_HANDLED;
 }
 
 /* ------------------------------------------------------------- */

drivers/isdn/hardware/avm/c4.c

@@ -659,7 +659,7 @@ static void c4_handle_rx(avmcard *card)
 
 /* ------------------------------------------------------------- */
 
-static void c4_handle_interrupt(avmcard *card)
+static irqreturn_t c4_handle_interrupt(avmcard *card)
 {
 	u32 status = c4inmeml(card->mbase+DOORBELL);
 
@@ -667,7 +667,7 @@ static void c4_handle_interrupt(avmcard *card)
 		int i;
 		c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c);
 		if (card->nlogcontr == 0)
-			return;
+			return IRQ_HANDLED;
 		printk(KERN_ERR "%s: unexpected reset\n", card->name);
                 for (i=0; i < card->nr_controllers; i++) {
 			avmctrl_info *cinfo = &card->ctrlinfo[i];
@@ -676,12 +676,12 @@ static void c4_handle_interrupt(avmcard *card)
 			capi_ctr_reseted(&cinfo->capi_ctrl);
 		}
 		card->nlogcontr = 0;
-		return;
+		return IRQ_HANDLED;
 	}
 
 	status &= (DBELL_UP_HOST | DBELL_DOWN_HOST);
 	if (!status)
-		return;
+		return IRQ_HANDLED;
 	c4outmeml(card->mbase+DOORBELL, status);
 
 	if ((status & DBELL_UP_HOST) != 0) {
@@ -702,13 +702,14 @@ static void c4_handle_interrupt(avmcard *card)
 			c4_dispatch_tx(card);
 		}
 	}
+	return IRQ_HANDLED;
 }
 
-static void c4_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
+static irqreturn_t c4_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
 {
 	avmcard *card = devptr;
 
-	c4_handle_interrupt(card);
+	return c4_handle_interrupt(card);
 }
 
 /* ------------------------------------------------------------- */

drivers/isdn/hardware/avm/t1isa.c

@@ -124,7 +124,7 @@ static int t1_detectandinit(unsigned int base, unsigned irq, int cardnr)
         return 0;
 }
 
-static void t1isa_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
+static irqreturn_t t1isa_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
 {
 	avmcard *card = devptr;
 	avmctrl_info *cinfo = &card->ctrlinfo[0];
@@ -252,13 +252,14 @@ static void t1isa_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
 
 		case 0xff:
 			printk(KERN_ERR "%s: card reseted ?\n", card->name);
-			return;
+			return IRQ_HANDLED;
 		default:
 			printk(KERN_ERR "%s: b1_interrupt: 0x%x ???\n",
 					card->name, b1cmd);
-			return;
+			return IRQ_NONE;
 		}
 	}
+	return IRQ_HANDLED;
 }
 
 /* ------------------------------------------------------------- */

drivers/isdn/hisax/avm_a1.c

@@ -113,14 +113,16 @@ static struct bc_hw_ops hscx_ops = {
 	.write_fifo = hscx_write_fifo,
 };
 
-static void
+static irqreturn_t
 avm_a1_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
 	u8 val, sval;
+	int handled = 0;
 
 	spin_lock(&cs->lock);
 	while (((sval = bytein(cs->hw.avm.cfg_reg)) & 0xf) != 0x7) {
+		handled = 1;
 		if (!(sval & AVM_A1_STAT_TIMER)) {
 			byteout(cs->hw.avm.cfg_reg, 0x1E);
 			sval = bytein(cs->hw.avm.cfg_reg);
@@ -144,6 +146,7 @@ avm_a1_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 	hscx_write(cs, 0, HSCX_MASK, 0x0);
 	hscx_write(cs, 1, HSCX_MASK, 0x0);
 	spin_unlock(&cs->lock);
+	return IRQ_RETVAL(handled);
 }
 
 static void

drivers/isdn/hisax/avm_a1p.c

@@ -159,7 +159,7 @@ static struct bc_hw_ops hscx_ops = {
 	.write_fifo = hscx_write_fifo,
 };
 
-static void
+static irqreturn_t
 avm_a1p_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
@@ -187,6 +187,7 @@ avm_a1p_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 	hscx_write(cs, 0, HSCX_MASK, 0x0);
 	hscx_write(cs, 1, HSCX_MASK, 0x0);
 	spin_unlock(&cs->lock);
+	return IRQ_HANDLED;
 }
 
 static void

drivers/isdn/hisax/bkm_a4t.c

@@ -137,18 +137,20 @@ static struct bc_hw_ops jade_ops = {
 	.write_fifo = jade_write_fifo,
 };
 
-static void
+static irqreturn_t
 bkm_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
 	u8 val = 0;
 	I20_REGISTER_FILE *pI20_Regs;
+	int handled = 0;
 
 	spin_lock(&cs->lock);
 	pI20_Regs = (I20_REGISTER_FILE *) (cs->hw.ax.base);
 
 	/* ISDN interrupt pending? */
 	if (pI20_Regs->i20IntStatus & intISDN) {
+		handled = 1;
 		/* Reset the ISDN interrupt     */
 		pI20_Regs->i20IntStatus = intISDN;
 		/* Disable ISDN interrupt */
@@ -172,6 +174,7 @@ bkm_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 		pI20_Regs->i20IntCtrl |= intISDN;
 	}
 	spin_unlock(&cs->lock);
+	return IRQ_RETVAL(handled);
 }
 
 static void

drivers/isdn/hisax/diva.c

@@ -319,7 +319,7 @@ static struct bc_hw_ops ipacx_bc_ops = {
 	.read_fifo  = ipacx_bc_read_fifo,
 };
 
-static void
+static irqreturn_t
 diva_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
@@ -331,9 +331,10 @@ diva_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 	}
 	if (!cnt)
 		printk(KERN_WARNING "Diva: IRQ LOOP\n");
+	return IRQ_HANDLED;
 }
 
-static void
+static irqreturn_t
 diva_ipac_pci_irq(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
@@ -341,22 +342,24 @@ diva_ipac_pci_irq(int intno, void *dev_id, struct pt_regs *regs)
 
 	val = readb(cs->hw.diva.pci_cfg);
 	if (!(val & PITA_INT0_STATUS))
-		return; /* other shared IRQ */
+		return IRQ_NONE; /* other shared IRQ */
 	writeb(PITA_INT0_STATUS, cs->hw.diva.pci_cfg); /* Reset pending INT0 */
 
-	ipac_irq(intno, dev_id, regs);
+	return ipac_irq(intno, dev_id, regs);
 }
 
-static void
+static irqreturn_t
 diva_ipacx_pci_irq(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
 	u8 val;
 
 	val = readb(cs->hw.diva.pci_cfg);
-	if (!(val &PITA_INT0_STATUS)) return; // other shared IRQ
+	if (!(val &PITA_INT0_STATUS))
+		return IRQ_NONE; // other shared IRQ
 	interrupt_ipacx(cs);      // handler for chip
 	writeb(PITA_INT0_STATUS, cs->hw.diva.pci_cfg);  // Reset PLX interrupt
+	return IRQ_HANDLED;
 }
 
 static void

drivers/isdn/hisax/elsa.c

@@ -307,7 +307,7 @@ TimerRun(struct IsdnCardState *cs)
 	return (v & ELSA_TIMER_RUN);
 }
 
-static void
+static irqreturn_t
 elsa_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
@@ -317,7 +317,7 @@ elsa_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 	/* The card tends to generate interrupts while being removed
 	   causing us to just crash the kernel. bad. */
 		printk(KERN_WARNING "Elsa: card not available!\n");
-		return;
+		return IRQ_NONE;
 	}
 #if ARCOFI_USE
 	if (cs->hw.elsa.MFlag) {
@@ -351,9 +351,10 @@ elsa_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 #endif
 	if (cs->hw.elsa.trig)
 		byteout(cs->hw.elsa.trig, 0x00);
+	return IRQ_HANDLED;
 }
 
-static void
+static irqreturn_t
 elsa_interrupt_ipac(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
@@ -361,13 +362,13 @@ elsa_interrupt_ipac(int intno, void *dev_id, struct pt_regs *regs)
 
 	if (!cs) {
 		printk(KERN_WARNING "Elsa: Spurious interrupt!\n");
-		return;
+		return IRQ_NONE;
 	}
 	if (cs->subtyp == ELSA_QS1000PCI || cs->subtyp == ELSA_QS3000PCI) {
 		val = bytein(cs->hw.elsa.cfg + 0x4c); /* PCI IRQ */
 		if (!test_bit(FLG_BUGGY_PLX9050, &cs->HW_Flags) && 
 		    !(val & ELSA_PCI_IRQ_MASK))
-			return;
+			return IRQ_NONE;
 	}
 #if ARCOFI_USE
 	if (cs->hw.elsa.MFlag) {
@@ -380,7 +381,7 @@ elsa_interrupt_ipac(int intno, void *dev_id, struct pt_regs *regs)
 		}
 	}
 #endif
-	ipac_irq(intno, dev_id, regs);
+	return ipac_irq(intno, dev_id, regs);
 }
 
 static void

drivers/isdn/hisax/enternow_pci.c

@@ -208,7 +208,7 @@ enpci_reset(struct IsdnCardState *cs)
 	return 0;
 }
 
-static void
+static irqreturn_t
 enpci_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
@@ -253,6 +253,7 @@ enpci_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 			write_tiger(cs);
 	}
 	spin_unlock(&cs->lock);
+	return IRQ_HANDLED;
 }
 
 static struct card_ops enpci_ops = {

drivers/isdn/hisax/hfc_pci.c

@@ -869,7 +869,7 @@ receive_emsg(struct IsdnCardState *cs)
 /*********************/
 /* Interrupt handler */
 /*********************/
-static void
+static irqreturn_t
 hfcpci_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
@@ -880,17 +880,17 @@ hfcpci_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 
 	if (!cs) {
 		printk(KERN_WARNING "HFC-PCI: Spurious interrupt!\n");
-		return;
+		return IRQ_NONE;
 	}
 	if (!(cs->hw.hfcpci.int_m2 & 0x08))
-		return;		/* not initialised */
+		return IRQ_NONE;		/* not initialised */
 
 	if (HFCPCI_ANYINT & (stat = Read_hfc(cs, HFCPCI_STATUS))) {
 		val = Read_hfc(cs, HFCPCI_INT_S1);
 		if (cs->debug & L1_DEB_ISAC)
 			debugl1(cs, "HFC-PCI: stat(%02x) s1(%02x)", stat, val);
 	} else
-		return;
+		return IRQ_NONE;
 
 	if (cs->debug & L1_DEB_ISAC)
 		debugl1(cs, "HFC-PCI irq %x", val);
@@ -964,6 +964,7 @@ hfcpci_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 		} else
 			val = 0;
 	}
+	return IRQ_HANDLED;
 }
 
 /********************************************************************/

drivers/isdn/hisax/hfc_sx.c

@@ -661,7 +661,7 @@ receive_emsg(struct IsdnCardState *cs)
 /*********************/
 /* Interrupt handler */
 /*********************/
-static void
+static irqreturn_t
 hfcsx_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
@@ -672,17 +672,17 @@ hfcsx_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 
 	if (!cs) {
 		printk(KERN_WARNING "HFC-SX: Spurious interrupt!\n");
-		return;
+		return IRQ_NONE;
 	}
 	if (!(cs->hw.hfcsx.int_m2 & 0x08))
-		return;		/* not initialised */
+		return IRQ_NONE;		/* not initialised */
 
 	if (HFCSX_ANYINT & (stat = Read_hfc(cs, HFCSX_STATUS))) {
 		val = Read_hfc(cs, HFCSX_INT_S1);
 		if (cs->debug & L1_DEB_ISAC)
 			debugl1(cs, "HFC-SX: stat(%02x) s1(%02x)", stat, val);
 	} else
-		return;
+		return IRQ_NONE;
 
 	if (cs->debug & L1_DEB_ISAC)
 		debugl1(cs, "HFC-SX irq %x", val);
@@ -756,6 +756,7 @@ hfcsx_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 		} else
 			val = 0;
 	}
+	return IRQ_HANDLED;
 }
 
 /********************************************************************/

drivers/isdn/hisax/hfcscard.c

@@ -32,7 +32,7 @@ hfcs_write_reg(struct IsdnCardState *cs, int data, u8 reg, u8 val)
 	cs->bc_hw_ops->write_reg(cs, data, reg, val);
 }
 
-static void
+static irqreturn_t
 hfcs_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
@@ -40,7 +40,7 @@ hfcs_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 
 	if (!cs) {
 		printk(KERN_WARNING "HFCS: Spurious interrupt!\n");
-		return;
+		return IRQ_NONE;
 	}
 	if ((HFCD_ANYINT | HFCD_BUSY_NBUSY) & 
 		(stat = hfcs_read_reg(cs, HFCD_DATA, HFCD_STAT))) {
@@ -52,6 +52,7 @@ hfcs_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 		if (cs->debug & L1_DEB_ISAC)
 			debugl1(cs, "HFCS: irq_no_irq stat(%02x)", stat);
 	}
+	return IRQ_HANDLED;
 }
 
 static void

drivers/isdn/hisax/hisax.h

@@ -28,6 +28,7 @@
 #include <linux/tty.h>
 #include <linux/serial_reg.h>
 #include <linux/netdevice.h>
+#include <linux/interrupt.h>
 
 #define ERROR_STATISTIC
 
@@ -886,7 +887,7 @@ struct card_ops {
 	void   (*release)    (struct IsdnCardState *);
 	void   (*aux_ind)    (struct IsdnCardState *, void *);
 	void   (*led_handler)(struct IsdnCardState *);
-	void   (*irq_func)   (int, void *, struct pt_regs *);
+	irqreturn_t (*irq_func)   (int, void *, struct pt_regs *);
 };
 
 /* Card specific drivers provide methods to access the

drivers/isdn/hisax/hisax_fcclassic.c

@@ -120,7 +120,7 @@ fcclassic_write_hscx_fifo(struct hscx *hscx, unsigned char * data, int size)
 
 // ----------------------------------------------------------------------
 
-static void
+static irqreturn_t
 fcclassic_irq(int intno, void *dev, struct pt_regs *regs)
 {
 	struct fritz_adapter *adapter = dev;
@@ -139,6 +139,7 @@ fcclassic_irq(int intno, void *dev, struct pt_regs *regs)
 			isac_irq(&adapter->isac);
 		}
 	}
+	return IRQ_HANDLED;
 }
 
 // ----------------------------------------------------------------------

drivers/isdn/hisax/hisax_fcpcipnp.c

@@ -629,7 +629,7 @@ static void fritz_b_l2l1(struct hisax_if *ifc, int pr, void *arg)
 
 // ----------------------------------------------------------------------
 
-static void fcpci2_irq(int intno, void *dev, struct pt_regs *regs)
+static irqreturn_t fcpci2_irq(int intno, void *dev, struct pt_regs *regs)
 {
 	struct fritz_adapter *adapter = dev;
 	unsigned char val;
@@ -637,16 +637,17 @@ static void fcpci2_irq(int intno, void *dev, struct pt_regs *regs)
 	val = inb(adapter->io + AVM_STATUS0);
 	if (!(val & AVM_STATUS0_IRQ_MASK))
 		/* hopefully a shared  IRQ reqest */
-		return;
+		return IRQ_NONE;
 	DBG(2, "STATUS0 %#x", val);
 	if (val & AVM_STATUS0_IRQ_ISAC)
 		isacsx_irq(&adapter->isac);
 
 	if (val & AVM_STATUS0_IRQ_HDLC)
 		hdlc_irq(adapter);
+	return IRQ_HANDLED;
 }
 
-static void fcpci_irq(int intno, void *dev, struct pt_regs *regs)
+static irqreturn_t fcpci_irq(int intno, void *dev, struct pt_regs *regs)
 {
 	struct fritz_adapter *adapter = dev;
 	unsigned char sval;
@@ -654,13 +655,14 @@ static void fcpci_irq(int intno, void *dev, struct pt_regs *regs)
 	sval = inb(adapter->io + 2);
 	if ((sval & AVM_STATUS0_IRQ_MASK) == AVM_STATUS0_IRQ_MASK)
 		/* possibly a shared  IRQ reqest */
-		return;
+		return IRQ_NONE;
 	DBG(2, "sval %#x", sval);
 	if (!(sval & AVM_STATUS0_IRQ_ISAC))
 		isac_irq(&adapter->isac);
 
 	if (!(sval & AVM_STATUS0_IRQ_HDLC))
 		hdlc_irq(adapter);
+	return IRQ_HANDLED;
 }
 
 // ----------------------------------------------------------------------

drivers/isdn/hisax/hisax_hfcpci.c

@@ -1321,7 +1321,7 @@ hfcpci_timer_irq(struct hfcpci_adapter *adapter)
 // ----------------------------------------------------------------------
 // IRQ handler
 
-static void
+static irqreturn_t
 hfcpci_irq(int intno, void *dev, struct pt_regs *regs)
 {
 	struct hfcpci_adapter *adapter = dev;
@@ -1329,11 +1329,11 @@ hfcpci_irq(int intno, void *dev, struct pt_regs *regs)
 	u8 val, stat;
 
 	if (!(adapter->int_m2 & 0x08))
-		return;		/* not initialised */ // XX
+		return IRQ_NONE;		/* not initialised */ // XX
 
 	stat = hfcpci_readb(adapter, HFCPCI_STATUS);
 	if (!(stat & HFCPCI_ANYINT))
-		return;
+		return IRQ_NONE;
 
 	spin_lock(&adapter->hw_lock);
 	while (loop-- > 0) {
@@ -1369,6 +1369,7 @@ hfcpci_irq(int intno, void *dev, struct pt_regs *regs)
 			hfcpci_timer_irq(adapter);
 	}
 	spin_unlock(&adapter->hw_lock);
+	return IRQ_HANDLED;
 }
 
 // ----------------------------------------------------------------------

drivers/isdn/hisax/hscx.h

@@ -10,6 +10,8 @@
  *
  */
 
+#include <linux/interrupt.h>
+
 /* All Registers original Siemens Spec  */
 
 #define HSCX_ISTA 0x20
@@ -37,7 +39,7 @@
 extern void modehscx(struct BCState *bcs, int mode, int bc);
 extern void inithscxisac(struct IsdnCardState *cs);
 extern void hscx_int_main(struct IsdnCardState *cs, u8 val);
-extern void hscxisac_irq(int intno, void *dev_id, struct pt_regs *regs);
+extern irqreturn_t hscxisac_irq(int intno, void *dev_id, struct pt_regs *regs);
 extern int  hscxisac_setup(struct IsdnCardState *cs,
 			   struct dc_hw_ops *isac_ops,
 			   struct bc_hw_ops *hscx_ops);

drivers/isdn/hisax/hscx_irq.c

@@ -185,7 +185,7 @@ isac_write(struct IsdnCardState *cs, u8 addr, u8 val)
 	cs->dc_hw_ops->write_reg(cs, addr, val);
 }
 
-void
+irqreturn_t
 hscxisac_irq(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
@@ -221,5 +221,6 @@ hscxisac_irq(int intno, void *dev_id, struct pt_regs *regs)
 	hscx_write(&cs->bcs[0], HSCX_MASK, 0x0);
 	hscx_write(&cs->bcs[1], HSCX_MASK, 0x0);
 	spin_unlock(&cs->lock);
+	return IRQ_HANDLED;
 }
 

drivers/isdn/hisax/ipac.c

@@ -47,7 +47,7 @@ ipac_init(struct IsdnCardState *cs)
 	inithscxisac(cs);
 }
 
-void
+irqreturn_t
 ipac_irq(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
@@ -90,6 +90,7 @@ ipac_irq(int intno, void *dev_id, struct pt_regs *regs)
 	ipac_write(cs, IPAC_MASK, 0xFF);
 	ipac_write(cs, IPAC_MASK, 0xC0);
 	spin_unlock(&cs->lock);
+	return IRQ_HANDLED;
 }
 
 int
@@ -102,4 +103,5 @@ ipac_setup(struct IsdnCardState *cs, struct dc_hw_ops *ipac_dc_ops,
 	cs->bc_hw_ops = ipac_bc_ops;
 	val = ipac_read(cs, IPAC_ID);
 	printk(KERN_INFO "HiSax: IPAC version %#x\n", val);
+	return 0;
 }

drivers/isdn/hisax/ipac.h

@@ -10,6 +10,8 @@
  *
  */
 
+#include <linux/interrupt.h>
+
 /* All Registers original Siemens Spec  */
 
 #define IPAC_CONF	0xC0
@@ -29,7 +31,7 @@
 #define IPAC_TIMR2	0xCC
 
 void ipac_init(struct IsdnCardState *cs);
-void ipac_irq(int intno, void *dev_id, struct pt_regs *regs);
+irqreturn_t ipac_irq(int intno, void *dev_id, struct pt_regs *regs);
 int  ipac_setup(struct IsdnCardState *cs, struct dc_hw_ops *ipac_dc_ops,
 		struct bc_hw_ops *ipac_bc_ops);
 

drivers/isdn/hisax/niccy.c

@@ -151,7 +151,7 @@ static struct bc_hw_ops hscx_ops = {
 	.write_fifo = hscx_write_fifo,
 };
 
-static void
+static irqreturn_t
 niccy_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
@@ -160,10 +160,10 @@ niccy_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 		int ival;
 		ival = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
 		if (!(ival & PCI_IRQ_ASSERT)) /* IRQ not for us (shared) */
-			return;
+			return IRQ_NONE;
 		outl(ival, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
 	}
-	hscxisac_irq(intno, dev_id, regs);
+	return hscxisac_irq(intno, dev_id, regs);
 }
 
 void

drivers/isdn/hisax/nj_s.c

@@ -17,7 +17,7 @@
 
 const char *NETjet_S_revision = "$Revision: 2.7.6.6 $";
 
-static void
+static irqreturn_t
 nj_s_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
@@ -70,6 +70,7 @@ nj_s_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 	}
 */
 	spin_unlock(&cs->lock);
+	return IRQ_HANDLED;
 }
 
 static int

drivers/isdn/hisax/nj_u.c

@@ -17,7 +17,7 @@
 
 const char *NETjet_U_revision = "$Revision: 2.8.6.6 $";
 
-static void
+static irqreturn_t
 nj_u_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
@@ -70,6 +70,7 @@ nj_u_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 	}
 */
 	spin_unlock(&cs->lock);
+	return IRQ_HANDLED;
 }
 
 static int

drivers/isdn/hisax/saphir.c

@@ -132,13 +132,15 @@ static struct bc_hw_ops hscx_ops = {
 	.write_fifo = hscx_write_fifo,
 };
 
-static void
+static irqreturn_t
 saphir_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
+	irqreturn_t ret;
 
-	hscxisac_irq(intno, dev_id, regs);
+	ret = hscxisac_irq(intno, dev_id, regs);
 	mod_timer(&cs->hw.saphir.timer, jiffies+1*HZ);
+	return ret;
 }
 
 static void

drivers/isdn/hisax/sedlbauer.c

@@ -283,7 +283,7 @@ static struct bc_hw_ops isar_ops = {
 	.write_reg  = isar_write,
 };
 
-static void
+static irqreturn_t
 sedlbauer_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
@@ -292,12 +292,12 @@ sedlbauer_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 		/* The card tends to generate interrupts while being removed
 		   causing us to just crash the kernel. bad. */
 		printk(KERN_WARNING "Sedlbauer: card not available!\n");
-		return;
+		return IRQ_NONE;
 	}
-	hscxisac_irq(intno, dev_id, regs);
+	return hscxisac_irq(intno, dev_id, regs);
 }
 
-static void
+static irqreturn_t
 sedlbauer_isar_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
@@ -334,6 +334,7 @@ sedlbauer_isar_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 	isac_write(cs, ISAC_MASK, 0x0);
 	isar_write(cs, 0, ISAR_IRQBIT, ISAR_IRQMSK);
 	spin_unlock(&cs->lock);
+	return IRQ_HANDLED;
 }
 
 static int

drivers/isdn/hisax/sportster.c

@@ -111,13 +111,14 @@ static struct bc_hw_ops hscx_ops = {
 	.write_fifo = hscx_write_fifo,
 };
 
-static void
+static irqreturn_t
 sportster_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
 
 	hscxisac_irq(intno, dev_id, regs);
 	bytein(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ +1);
+	return IRQ_HANDLED;
 }
 
 static void

drivers/isdn/hisax/teleint.c

@@ -178,7 +178,7 @@ static struct bc_hw_ops hfc_ops = {
 	.write_reg = WriteHFC,
 };
 
-static void
+static irqreturn_t
 teleint_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
@@ -198,6 +198,7 @@ teleint_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 	writereg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, ISAC_MASK, 0xFF);
 	writereg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, ISAC_MASK, 0x0);
 	spin_unlock(&cs->lock);
+	return IRQ_HANDLED;
 }
 
 static void

drivers/isdn/hisax/telespci.c

@@ -199,7 +199,7 @@ static struct bc_hw_ops hscx_ops = {
 	.write_fifo = hscx_write_fifo,
 };
 
-static void
+static irqreturn_t
 telespci_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 #define MAXCOUNT 20
@@ -223,6 +223,7 @@ telespci_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 	hscx_write(cs, 0, HSCX_MASK, 0x0);
 	hscx_write(cs, 1, HSCX_MASK, 0x0);
 	spin_unlock(&cs->lock);
+	return IRQ_HANDLED;
 }
 
 static struct card_ops telespci_ops = {

drivers/isdn/hisax/w6692.c

@@ -287,7 +287,7 @@ W6692B_interrupt(struct IsdnCardState *cs, u8 bchan)
 	}
 }
 
-static void
+static irqreturn_t
 w6692_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
@@ -395,6 +395,7 @@ w6692_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 		w6692_write_reg(cs, W_IMASK, 0xff);
 	}
 	spin_unlock(&cs->lock);
+	return IRQ_HANDLED;
 }
 
 static void

drivers/isdn/hysdn/boardergo.c

@@ -32,7 +32,7 @@
 /***************************************************/
 /* The cards interrupt handler. Called from system */
 /***************************************************/
-static void
+static irqreturn_t
 ergo_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	hysdn_card *card = dev_id;	/* parameter from irq */
@@ -41,16 +41,16 @@ ergo_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 	uchar volatile b;
 
 	if (!card)
-		return;		/* error -> spurious interrupt */
+		return IRQ_NONE;		/* error -> spurious interrupt */
 	if (!card->irq_enabled)
-		return;		/* other device interrupting or irq switched off */
+		return IRQ_NONE;		/* other device interrupting or irq switched off */
 
 	save_flags(flags);
 	cli();			/* no further irqs allowed */
 
 	if (!(bytein(card->iobase + PCI9050_INTR_REG) & PCI9050_INTR_REG_STAT1)) {
 		restore_flags(flags);	/* restore old state */
-		return;		/* no interrupt requested by E1 */
+		return IRQ_NONE;		/* no interrupt requested by E1 */
 	}
 	/* clear any pending ints on the board */
 	dpr = card->dpram;
@@ -62,6 +62,7 @@ ergo_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 	if (!card->hw_lock)
 		schedule_work(&card->irq_queue);
 	restore_flags(flags);
+	return IRQ_HANDLED;
 }				/* ergo_interrupt */
 
 /******************************************************************************/

drivers/isdn/pcbit/layer2.c

@@ -524,7 +524,7 @@ pcbit_firmware_bug(struct pcbit_dev *dev)
 	}
 }
 
-void
+irqreturn_t
 pcbit_irq_handler(int interrupt, void *devptr, struct pt_regs *regs)
 {
 	struct pcbit_dev *dev;
@@ -536,11 +536,11 @@ pcbit_irq_handler(int interrupt, void *devptr, struct pt_regs *regs)
 
 	if (!dev) {
 		printk(KERN_WARNING "pcbit_irq_handler: wrong device\n");
-		return;
+		return IRQ_NONE;
 	}
 	if (dev->interrupt) {
 		printk(KERN_DEBUG "pcbit: reentering interrupt hander\n");
-		return;
+		return IRQ_HANDLED;
 	}
 	dev->interrupt = 1;
 
@@ -549,7 +549,7 @@ pcbit_irq_handler(int interrupt, void *devptr, struct pt_regs *regs)
 	if (dev->l2_state == L2_STARTING || dev->l2_state == L2_ERROR) {
 		pcbit_l2_active_conf(dev, info);
 		dev->interrupt = 0;
-		return;
+		return IRQ_HANDLED;
 	}
 	if (info & 0x40U) {     /* E bit set */
 #ifdef DEBUG
@@ -557,11 +557,11 @@ pcbit_irq_handler(int interrupt, void *devptr, struct pt_regs *regs)
 #endif
 		pcbit_l2_error(dev);
 		dev->interrupt = 0;
-		return;
+		return IRQ_HANDLED;
 	}
 	if (dev->l2_state != L2_RUNNING && dev->l2_state != L2_LOADING) {
 		dev->interrupt = 0;
-		return;
+		return IRQ_HANDLED;
 	}
 	ack_seq = (info >> 3) & 0x07U;
 	read_seq = (info & 0x07U);
@@ -582,6 +582,7 @@ pcbit_irq_handler(int interrupt, void *devptr, struct pt_regs *regs)
 	info |= dev->send_seq;
 
 	writeb(info, dev->sh_mem + BANK4);
+	return IRQ_HANDLED;
 }
 
 

drivers/isdn/pcbit/layer2.h

@@ -17,6 +17,8 @@
 #ifndef LAYER2_H
 #define LAYER2_H
 
+#include <linux/interrupt.h>
+
 #include <asm/byteorder.h>
 
 #define BANK1 0x0000U /* PC -> Board */
@@ -122,7 +124,7 @@ struct frame_buf {
 extern int pcbit_l2_write(struct pcbit_dev * dev, ulong msg, ushort refnum, 
                           struct sk_buff *skb, unsigned short hdr_len);
 
-extern void pcbit_irq_handler(int interrupt, void *, struct pt_regs *regs);
+extern irqreturn_t pcbit_irq_handler(int interrupt, void *, struct pt_regs *regs);
 
 extern struct pcbit_dev * dev_pcbit[MAX_PCBIT_CARDS];
 

drivers/isdn/sc/init.c

@@ -36,7 +36,7 @@ static int do_reset = 0;
 static int sup_irq[] = { 11, 10, 9, 5, 12, 14, 7, 3, 4, 6 };
 #define MAX_IRQS	10
 
-extern void interrupt_handler(int, void *, struct pt_regs *);
+extern irqreturn_t interrupt_handler(int, void *, struct pt_regs *);
 extern int sndpkt(int, int, int, struct sk_buff *);
 extern int command(isdn_ctrl *);
 extern int indicate_status(int, int, ulong, char*);

drivers/isdn/sc/interrupt.c

@@ -19,6 +19,7 @@
 #include "hardware.h"
 #include "message.h"
 #include "card.h"
+#include <linux/interrupt.h>
 
 extern int indicate_status(int, int, ulong, char *);
 extern void check_phystat(unsigned long);
@@ -44,7 +45,8 @@ int get_card_from_irq(int irq)
 /*
  * 
  */
-void interrupt_handler(int interrupt, void * cardptr, struct pt_regs *regs ) {
+irqreturn_t interrupt_handler(int interrupt, void *cardptr, struct pt_regs *regs)
+{
 
 	RspMessage rcvmsg;
 	int channel;
@@ -54,7 +56,7 @@ void interrupt_handler(int interrupt, void * cardptr, struct pt_regs *regs ) {
 
 	if(!IS_VALID_CARD(card)) {
 		pr_debug("Invalid param: %d is not a valid card id\n", card);
-		return;
+		return IRQ_NONE;
 	}
 
 	pr_debug("%s: Entered Interrupt handler\n", adapter[card]->devicename);
@@ -242,4 +244,5 @@ void interrupt_handler(int interrupt, void * cardptr, struct pt_regs *regs ) {
 	}	/* while */
 
 	pr_debug("%s: Exiting Interrupt Handler\n", adapter[card]->devicename);
+	return IRQ_HANDLED;
 }

drivers/isdn/tpam/tpam.h

@@ -17,6 +17,7 @@
 #include <linux/isdnif.h>
 #include <linux/init.h>
 #include <linux/workqueue.h>
+#include <linux/interrupt.h>
 
 /* Maximum number of channels for this board */
 #define TPAM_NBCHANNEL		30
@@ -197,7 +198,7 @@ extern int parse_U3DataInd(struct sk_buff *, u32 *, u8 **, u16 *);
 /* Function prototypes from tpam_queues.c */
 extern void tpam_enqueue(tpam_card *, struct sk_buff *);
 extern void tpam_enqueue_data(tpam_channel *, struct sk_buff *);
-extern void tpam_irq(int, void *, struct pt_regs *);
+extern irqreturn_t tpam_irq(int, void *, struct pt_regs *);
 extern void tpam_recv_tq(tpam_card *);
 extern void tpam_send_tq(tpam_card *);
 

drivers/isdn/tpam/tpam_commands.c

@@ -173,7 +173,8 @@ static int tpam_command_ioctl_dspsave(tpam_card *card, u32 arg) {
  * Return: 0 if OK, <0 on errors.
  */
 static int tpam_command_ioctl_dsprun(tpam_card *card) {
-	u32 signature = 0, timeout, i;
+	u32 signature = 0, i;
+	unsigned long timeout;
 	isdn_ctrl ctrl;
 	struct sk_buff *skb;
 

drivers/isdn/tpam/tpam_queues.c

@@ -74,7 +74,8 @@ void tpam_enqueue_data(tpam_channel *channel, struct sk_buff *skb) {
  * 	dev_id: the registered board to the irq
  * 	regs: not used.
  */
-void tpam_irq(int irq, void *dev_id, struct pt_regs *regs) {
+irqreturn_t tpam_irq(int irq, void *dev_id, struct pt_regs *regs)
+{
 	tpam_card *card = (tpam_card *)dev_id;
 	u32 ackupload, uploadptr;
 	u32 waiting_too_long;
@@ -115,7 +116,7 @@ void tpam_irq(int irq, void *dev_id, struct pt_regs *regs) {
 			printk(KERN_ERR "TurboPAM(tpam_irq): "
 			       "alloc_skb failed\n");
 			spin_unlock(&card->lock);
-			return;
+			return IRQ_HANDLED;
 		}
 
 		/* build the skb_header */
@@ -147,7 +148,7 @@ void tpam_irq(int irq, void *dev_id, struct pt_regs *regs) {
 				spin_unlock(&card->lock);
 				printk(KERN_ERR "TurboPAM(tpam_irq): "
 						"waiting too long...\n");
-				return;
+				return IRQ_HANDLED;
 			}
 		} while (hpic & 0x00000002);
 
@@ -169,7 +170,7 @@ void tpam_irq(int irq, void *dev_id, struct pt_regs *regs) {
 			skb_queue_tail(&card->recvq, skb);
 			schedule_work(&card->recv_tq);
 		}
-		return;
+		return IRQ_HANDLED;
 	}
 	else {
 		/* it is a ack from the board */
@@ -185,10 +186,8 @@ void tpam_irq(int irq, void *dev_id, struct pt_regs *regs) {
 
 		/* schedule the send queue for execution */
 		schedule_work(&card->send_tq);
-		return;
 	}
-
-	/* not reached */
+	return IRQ_HANDLED;
 }
 
 /*