staging: comedi: s626: cleanup request_irq in s626_attach_pci()

Only set dev->irq if request_irq is successfull.

Remove the kernel message noise.
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/s626.c

@@ -2503,25 +2503,18 @@ static int s626_attach_pci(struct comedi_device *dev, struct pci_dev *pcidev)
 	if (ret)
 		return ret;
 
-	ret = comedi_alloc_subdevices(dev, 6);
-	if (ret)
-		return ret;
-
-	dev->irq = pcidev->irq;
-
-	/* set up interrupt handler */
-	if (dev->irq == 0) {
-		printk(KERN_ERR " unknown irq (bad)\n");
-	} else {
-		ret = request_irq(dev->irq, s626_irq_handler, IRQF_SHARED,
+	if (pcidev->irq) {
+		ret = request_irq(pcidev->irq, s626_irq_handler, IRQF_SHARED,
 				  dev->board_name, dev);
 
-		if (ret < 0) {
-			printk(KERN_ERR " irq not available\n");
-			dev->irq = 0;
-		}
+		if (ret == 0)
+			dev->irq = pcidev->irq;
 	}
 
+	ret = comedi_alloc_subdevices(dev, 6);
+	if (ret)
+		return ret;
+
 	s = dev->subdevices + 0;
 	/* analog input subdevice */
 	dev->read_subdev = s;