staging: comedi: ni_670x: change printk's to cleaned up dev_printk's

Convert all the prink's in this file to dev_prink's.

Change the INFO message in ni_670x_find_device into a dev_warn().
This message is only displayed if a matching device was not found.
A warning is more appropriate here than info.

Consolidate the attach messages into one dev_info() output after
the successful attach.
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/ni_670x.c

@@ -217,7 +217,7 @@ static int ni_670x_find_device(struct comedi_device *dev, int bus, int slot)
 			}
 		}
 	}
-	printk(KERN_INFO "no device found\n");
+	dev_warn(dev->class_dev, "no device found\n");
 	mite_list_devices();
 	return -EIO;
 }
@@ -231,8 +231,6 @@ static int ni_670x_attach(struct comedi_device *dev,
 	int ret;
 	int i;
 
-	printk(KERN_INFO "comedi%d: ni_670x: ", dev->minor);
-
 	ret = alloc_private(dev, sizeof(*devpriv));
 	if (ret < 0)
 		return ret;
@@ -245,12 +243,11 @@ static int ni_670x_attach(struct comedi_device *dev,
 
 	ret = mite_setup(devpriv->mite);
 	if (ret < 0) {
-		printk(KERN_WARNING "error setting up mite\n");
+		dev_warn(dev->class_dev, "error setting up mite\n");
 		return ret;
 	}
 	dev->board_name = thisboard->name;
 	dev->irq = mite_irq(devpriv->mite);
-	printk(KERN_INFO " %s", dev->board_name);
 
 	ret = comedi_alloc_subdevices(dev, 2);
 	if (ret)
@@ -295,7 +292,8 @@ static int ni_670x_attach(struct comedi_device *dev,
 	/* Config of ao registers */
 	writel(0x00, devpriv->mite->daq_io_addr + AO_CONTROL_OFFSET);
 
-	printk(KERN_INFO "attached\n");
+	dev_info(dev->class_dev, "%s: %s attached\n",
+		dev->driver->driver_name, dev->board_name);
 
 	return 1;
 }