From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 9 Apr 2013 23:32:24 +0000 (-0700)
Subject: staging: comedi: comedi_parport: use comedi_request_region()
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8bee2dead8326f4144eab10126448fb58b4b2ac3;p=linux-beck.git

staging: comedi: comedi_parport: use comedi_request_region()

Use comedi_request_region() to request the I/O region used by this
driver.

Remove the noise when the board is first attached as well as the
error message when the request_region() fails, comedi_request_reqion()
will output the error message if necessary.

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

diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index e392f6837ab1..f9dc1e8a8dad 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -261,17 +261,13 @@ static int parport_attach(struct comedi_device *dev,
 			  struct comedi_devconfig *it)
 {
 	struct parport_private *devpriv;
-	int ret;
-	unsigned int irq;
-	unsigned long iobase;
 	struct comedi_subdevice *s;
+	unsigned int irq;
+	int ret;
 
-	iobase = it->options[0];
-	if (!request_region(iobase, PARPORT_SIZE, dev->board_name)) {
-		dev_err(dev->class_dev, "I/O port conflict\n");
-		return -EIO;
-	}
-	dev->iobase = iobase;
+	ret = comedi_request_region(dev, it->options[0], PARPORT_SIZE);
+	if (ret)
+		return ret;
 
 	irq = it->options[1];
 	if (irq) {
@@ -339,9 +335,6 @@ static int parport_attach(struct comedi_device *dev,
 	devpriv->c_data = 0;
 	outb(devpriv->c_data, dev->iobase + PARPORT_C);
 
-	dev_info(dev->class_dev, "%s: iobase=0x%04lx, irq %sabled",
-		dev->board_name, dev->iobase, dev->irq ? "en" : "dis");
-
 	return 0;
 }