[PATCH 42/79] staging: comedi: aio_aio12_8: use comedi_request_region()

H Hartley Sweeten hsweeten at visionengravers.com
Tue Apr 9 23:21:31 UTC 2013


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

Remove 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 at visionengravers.com>
Cc: Ian Abbott <abbotti at mev.co.uk>
Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
---
 drivers/staging/comedi/drivers/aio_aio12_8.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/comedi/drivers/aio_aio12_8.c b/drivers/staging/comedi/drivers/aio_aio12_8.c
index 14cee49..e37d4a8 100644
--- a/drivers/staging/comedi/drivers/aio_aio12_8.c
+++ b/drivers/staging/comedi/drivers/aio_aio12_8.c
@@ -200,15 +200,11 @@ static int aio_aio12_8_attach(struct comedi_device *dev,
 	const struct aio12_8_boardtype *board = comedi_board(dev);
 	struct aio12_8_private *devpriv;
 	struct comedi_subdevice *s;
-	int iobase;
 	int ret;
 
-	iobase = it->options[0];
-	if (!request_region(iobase, 32, dev->board_name)) {
-		printk(KERN_ERR "I/O port conflict");
-		return -EIO;
-	}
-	dev->iobase = iobase;
+	ret = comedi_request_region(dev, it->options[0], 32);
+	if (ret)
+		return ret;
 
 	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
 	if (!devpriv)
@@ -248,8 +244,8 @@ static int aio_aio12_8_attach(struct comedi_device *dev,
 
 	s = &dev->subdevices[2];
 	/* 8255 Digital i/o subdevice */
-	iobase = dev->iobase + AIO12_8_8255_BASE_REG;
-	ret = subdev_8255_init(dev, s, NULL, iobase);
+	ret = subdev_8255_init(dev, s, NULL,
+			       dev->iobase + AIO12_8_8255_BASE_REG);
 	if (ret)
 		return ret;
 
-- 
1.8.1.4




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