staging: comedi: drivers: use dev->board_name in request_irq()

Most of the comedi drivers use the dev->board_name for the id string
passed to request_irq(). Fix the couple that still pass something
else.

Also, propogate the errno from request_irq().
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/cb_pcidas.c

@@ -1471,11 +1471,12 @@ static int cb_pcidas_auto_attach(struct comedi_device *dev,
 	outl(INTCSR_INBOX_INTR_STATUS,
 	     devpriv->s5933_config + AMCC_OP_REG_INTCSR);
 
-	if (request_irq(pcidev->irq, cb_pcidas_interrupt,
-			IRQF_SHARED, dev->driver->driver_name, dev)) {
+	ret = request_irq(pcidev->irq, cb_pcidas_interrupt, IRQF_SHARED,
+			  dev->board_name, dev);
+	if (ret) {
 		dev_dbg(dev->class_dev, "unable to allocate irq %d\n",
 			pcidev->irq);
-		return -EINVAL;
+		return ret;
 	}
 	dev->irq = pcidev->irq;
 

drivers/staging/comedi/drivers/cb_pcidas64.c

@@ -3989,12 +3989,13 @@ static int auto_attach(struct comedi_device *dev,
 		devpriv->hw_revision);
 	init_plx9080(dev);
 	init_stc_registers(dev);
-	/*  get irq */
-	if (request_irq(pcidev->irq, handle_interrupt, IRQF_SHARED,
-			"cb_pcidas64", dev)) {
+
+	retval = request_irq(pcidev->irq, handle_interrupt, IRQF_SHARED,
+			     dev->board_name, dev);
+	if (retval) {
 		dev_dbg(dev->class_dev, "unable to allocate irq %u\n",
 			pcidev->irq);
-		return -EINVAL;
+		return retval;
 	}
 	dev->irq = pcidev->irq;
 	dev_dbg(dev->class_dev, "irq %u\n", dev->irq);

drivers/staging/comedi/drivers/ni_660x.c

@@ -1165,8 +1165,8 @@ static int ni_660x_auto_attach(struct comedi_device *dev,
 	for (i = 0; i < board->n_chips; ++i)
 		set_tio_counterswap(dev, i);
 
-	ret = request_irq(pcidev->irq, ni_660x_interrupt,
-			  IRQF_SHARED, "ni_660x", dev);
+	ret = request_irq(pcidev->irq, ni_660x_interrupt, IRQF_SHARED,
+			  dev->board_name, dev);
 	if (ret < 0) {
 		dev_warn(dev->class_dev, " irq not available\n");
 		return ret;

drivers/staging/comedi/drivers/ni_atmio.c

@@ -345,8 +345,7 @@ static int ni_atmio_attach(struct comedi_device *dev,
 		if (irq > 15 || ni_irqpin[irq] == -1)
 			return -EINVAL;
 		ret = request_irq(irq, ni_E_interrupt, 0,
-				  "ni_atmio", dev);
-
+				  dev->board_name, dev);
 		if (ret < 0)
 			return -EINVAL;
 		dev->irq = irq;