staging: comedi: addi_common.c: remove v_ADDI_Interrupt()

The addi_apci_035 and addi_apci_1500 are the only drivers left that use
this function in addi_common.c. The function simply calls the 'interrupt'
function that is in the boardinfo of the driver. Both drivers use the
same 'interrupt' function for all boardnfo entries.

Remove the i_ADDI_Reset() function as well as the 'interrupt' boardinfo
and use the 'interrupt' function directly when doing the request_irq().

In addition, the addi_apci_3120 driver has a private v_ADDI_Interrupt()
function that is doing the same thing. Remove that one as well.

Fix the return type of 'interrupt' functions in the drivers and add the
return vaules.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/addi-data/addi_common.c

@@ -55,12 +55,3 @@ static int i_ADDIDATA_InsnReadEeprom(struct comedi_device *dev,
 
 	return insn->n;
 }
-
-static irqreturn_t v_ADDI_Interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	const struct addi_board *this_board = dev->board_ptr;
-
-	this_board->interrupt(irq, d);
-	return IRQ_RETVAL(1);
-}

drivers/staging/comedi/drivers/addi-data/hwdrv_apci035.c

@@ -434,7 +434,7 @@ static int apci035_reset(struct comedi_device *dev)
 	return 0;
 }
 
-static void apci035_interrupt(int irq, void *d)
+static irqreturn_t apci035_interrupt(int irq, void *d)
 {
 	struct comedi_device *dev = d;
 	struct addi_private *devpriv = dev->private;
@@ -477,4 +477,6 @@ static void apci035_interrupt(int irq, void *d)
 		/*  send signal to the sample */
 		send_sig(SIGIO, devpriv->tsk_Current, 0);
 	}
+
+	return IRQ_HANDLED;
 }

drivers/staging/comedi/drivers/addi-data/hwdrv_apci1500.c

@@ -2011,7 +2011,7 @@ static int apci1500_do_bits(struct comedi_device *dev,
 	return insn->n;
 }
 
-static void apci1500_interrupt(int irq, void *d)
+static irqreturn_t apci1500_interrupt(int irq, void *d)
 {
 
 	struct comedi_device *dev = d;
@@ -2180,6 +2180,8 @@ static void apci1500_interrupt(int irq, void *d)
 			"Interrupt from unknown source\n");
 
 	}
+
+	return IRQ_HANDLED;
 }
 
 static int apci1500_reset(struct comedi_device *dev)

drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c

@@ -1415,7 +1415,7 @@ static int apci3120_interrupt_handle_eos(struct comedi_device *dev)
 	return 0;
 }
 
-static void apci3120_interrupt(int irq, void *d)
+static irqreturn_t apci3120_interrupt(int irq, void *d)
 {
 	struct comedi_device *dev = d;
 	struct addi_private *devpriv = dev->private;
@@ -1432,7 +1432,7 @@ static void apci3120_interrupt(int irq, void *d)
 
 	if ((!int_daq) && (!(int_amcc & ANY_S593X_INT))) {
 		dev_err(dev->class_dev, "IRQ from unknown source\n");
-		return;
+		return IRQ_NONE;
 	}
 
 	outl(int_amcc | 0x00ff0000, devpriv->i_IobaseAmcc + AMCC_OP_REG_INTCSR);	/*  shutdown IRQ reasons in AMCC */
@@ -1587,6 +1587,8 @@ static void apci3120_interrupt(int irq, void *d)
 
 	}
 	comedi_handle_events(dev, s);
+
+	return IRQ_HANDLED;
 }
 
 /*

drivers/staging/comedi/drivers/addi_apci_035.c

@@ -27,7 +27,6 @@ static const struct addi_board apci035_boardtypes[] = {
 		.i_Timer		= 1,
 		.ui_MinAcquisitiontimeNs = 10000,
 		.ui_MinDelaytimeNs	= 100000,
-		.interrupt		= apci035_interrupt,
 		.ai_config		= apci035_ai_config,
 		.ai_read		= apci035_ai_read,
 		.timer_config		= apci035_timer_config,
@@ -84,7 +83,7 @@ static int apci035_auto_attach(struct comedi_device *dev,
 	/* ## */
 
 	if (pcidev->irq > 0) {
-		ret = request_irq(pcidev->irq, v_ADDI_Interrupt, IRQF_SHARED,
+		ret = request_irq(pcidev->irq, apci035_interrupt, IRQF_SHARED,
 				  dev->board_name, dev);
 		if (ret == 0)
 			dev->irq = pcidev->irq;

drivers/staging/comedi/drivers/addi_apci_1500.c

@@ -20,7 +20,6 @@ static const struct addi_board apci1500_boardtypes[] = {
 		.i_NbrDoChannel		= 16,
 		.i_DoMaxdata		= 0xffff,
 		.i_Timer		= 1,
-		.interrupt		= apci1500_interrupt,
 		.di_config		= apci1500_di_config,
 		.di_read		= apci1500_di_read,
 		.di_write		= apci1500_di_write,
@@ -83,7 +82,7 @@ static int apci1500_auto_attach(struct comedi_device *dev,
 	/* ## */
 
 	if (pcidev->irq > 0) {
-		ret = request_irq(pcidev->irq, v_ADDI_Interrupt, IRQF_SHARED,
+		ret = request_irq(pcidev->irq, apci1500_interrupt, IRQF_SHARED,
 				  dev->board_name, dev);
 		if (ret == 0)
 			dev->irq = pcidev->irq;

drivers/staging/comedi/drivers/addi_apci_3120.c

@@ -26,7 +26,6 @@ static const struct addi_board apci3120_boardtypes[] = {
 		.i_NbrDiChannel		= 4,
 		.i_NbrDoChannel		= 4,
 		.i_DoMaxdata		= 0x0f,
-		.interrupt		= apci3120_interrupt,
 	},
 	[BOARD_APCI3001] = {
 		.pc_DriverName		= "apci3001",
@@ -37,19 +36,9 @@ static const struct addi_board apci3120_boardtypes[] = {
 		.i_NbrDiChannel		= 4,
 		.i_NbrDoChannel		= 4,
 		.i_DoMaxdata		= 0x0f,
-		.interrupt		= apci3120_interrupt,
 	},
 };
 
-static irqreturn_t v_ADDI_Interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	const struct addi_board *this_board = dev->board_ptr;
-
-	this_board->interrupt(irq, d);
-	return IRQ_RETVAL(1);
-}
-
 static int apci3120_auto_attach(struct comedi_device *dev,
 				unsigned long context)
 {
@@ -82,7 +71,7 @@ static int apci3120_auto_attach(struct comedi_device *dev,
 	devpriv->i_IobaseReserved = pci_resource_start(pcidev, 3);
 
 	if (pcidev->irq > 0) {
-		ret = request_irq(pcidev->irq, v_ADDI_Interrupt, IRQF_SHARED,
+		ret = request_irq(pcidev->irq, apci3120_interrupt, IRQF_SHARED,
 				  dev->board_name, dev);
 		if (ret == 0)
 			dev->irq = pcidev->irq;