staging: comedi: addi-data: remove irq parameter from i_pci_card_data()

The irq parameter passed to i_pci_card_data() is used to get the pci_dev
irq that is cached in the card data. This information can easily be found
when needed in i_ADDI_Attach() from the 'card' pointer to the card data.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/addi-data/addi_amcc_s5933.h

@@ -231,8 +231,7 @@ struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id,
 int pci_card_alloc(struct pcilst_struct *amcc, int master);
 int i_pci_card_free(struct pcilst_struct *amcc);
 int i_pci_card_data(struct pcilst_struct *amcc,
-		    resource_size_t *io_addr,
-		    unsigned int *irq);
+		    resource_size_t *io_addr);
 
 /****************************************************************************/
 
@@ -382,16 +381,14 @@ int i_pci_card_free(struct pcilst_struct *amcc)
 /****************************************************************************/
 /* return all card information for driver */
 int i_pci_card_data(struct pcilst_struct *amcc,
-		    resource_size_t *io_addr,
-		    unsigned int *irq)
+		    resource_size_t *io_addr)
 {
 	int i;
 
 	if (!amcc)
 		return -1;
 	for (i = 0; i < 5; i++)
 		io_addr[i] = amcc->io_addr[i];
-	*irq = amcc->irq;
 	return 0;
 }
 

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

@@ -92,7 +92,6 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	int ret, pages, i, n_subdevices;
 	unsigned int dw_Dummy;
 	resource_size_t io_addr[5];
-	unsigned int irq;
 	resource_size_t iobase_a, iobase_main, iobase_addon, iobase_reserved;
 	struct pcilst_struct *card = NULL;
 	int i_Dma = 0;
@@ -121,7 +120,7 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	devpriv->allocated = 1;
 
-	if ((i_pci_card_data(card, &io_addr[0], &irq)) < 0) {
+	if ((i_pci_card_data(card, &io_addr[0])) < 0) {
 		i_pci_card_free(card);
 		return -EIO;
 	}
@@ -176,15 +175,13 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	/* ## */
 
-	if (irq > 0) {
-		if (request_irq(irq, v_ADDI_Interrupt, IRQF_SHARED,
-				this_board->pc_DriverName, dev) < 0) {
-			irq = 0;	/* Can't use IRQ */
-		}
+	if (card->irq > 0) {
+		ret = request_irq(card->irq, v_ADDI_Interrupt, IRQF_SHARED,
+				  this_board->pc_DriverName, dev);
+		if (ret == 0)
+			dev->irq = card->irq;
 	}
 
-	dev->irq = irq;
-
 	/*  Read eepeom and fill addi_board Structure */
 
 	if (this_board->i_PCIEeprom) {