staging: comedi: ni_6527: convert printk() to dev_...()

Convert the `printk()` calls in this drivers to use the `dev_...()`
calls instead.  Remove the initial `printk()` call in the comedi
`attach()` handler (`ni6527_attach()`) as it's a bit redundant - the
board type and contents of a board ID register are printed later in the
function.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/ni_6527.c

@@ -369,8 +369,6 @@ static int ni6527_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	struct comedi_subdevice *s;
 	int ret;
 
-	printk(KERN_INFO "comedi%d: ni6527\n", dev->minor);
-
 	ret = alloc_private(dev, sizeof(struct ni6527_private));
 	if (ret < 0)
 		return ret;
@@ -381,13 +379,13 @@ static int ni6527_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	ret = mite_setup(devpriv->mite);
 	if (ret < 0) {
-		printk(KERN_ERR "comedi: error setting up mite\n");
+		dev_err(dev->class_dev, "error setting up mite\n");
 		return ret;
 	}
 
 	dev->board_name = this_board->name;
-	printk(KERN_INFO "comedi board: %s, ID=0x%02x\n", dev->board_name,
-		readb(devpriv->mite->daq_io_addr + ID_Register));
+	dev_info(dev->class_dev, "board: %s, ID=0x%02x\n", dev->board_name,
+		 readb(devpriv->mite->daq_io_addr + ID_Register));
 
 	ret = comedi_alloc_subdevices(dev, 3);
 	if (ret)
@@ -434,7 +432,7 @@ static int ni6527_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	ret = request_irq(mite_irq(devpriv->mite), ni6527_interrupt,
 			  IRQF_SHARED, "ni6527", dev);
 	if (ret < 0)
-		printk(KERN_WARNING "comedi i6527 irq not available\n");
+		dev_warn(dev->class_dev, "irq not available\n");
 	else
 		dev->irq = mite_irq(devpriv->mite);
 
@@ -473,7 +471,7 @@ static int ni6527_find_device(struct comedi_device *dev, int bus, int slot)
 			}
 		}
 	}
-	printk(KERN_ERR "comedi 6527: no device found\n");
+	dev_err(dev->class_dev, "ni6527: no device found\n");
 	mite_list_devices();
 	return -EIO;
 }