[PATCH 05/79] staging: comedi: pcl724: use comedi_request_region()

H Hartley Sweeten hsweeten at visionengravers.com
Tue Apr 9 23:07:43 UTC 2013


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 at visionengravers.com>
Cc: Ian Abbott <abbotti at mev.co.uk>
Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl724.c | 17 +++++------------
 1 file changed, 5 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl724.c b/drivers/staging/comedi/drivers/pcl724.c
index a8112e3..2821ead 100644
--- a/drivers/staging/comedi/drivers/pcl724.c
+++ b/drivers/staging/comedi/drivers/pcl724.c
@@ -100,26 +100,19 @@ static int pcl724_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 {
 	const struct pcl724_board *board = comedi_board(dev);
 	struct comedi_subdevice *s;
-	unsigned long iobase;
 	unsigned int iorange;
 	int ret, i, n_subdevices;
 #ifdef PCL724_IRQ
 	unsigned int irq;
 #endif
 
-	iobase = it->options[0];
 	iorange = board->io_range;
-	if ((board->can_have96) && ((it->options[1] == 1)
-					 || (it->options[1] == 96)))
+	if ((board->can_have96) &&
+	    ((it->options[1] == 1) || (it->options[1] == 96)))
 		iorange = PCL722_96_SIZE; /* PCL-724 in 96 DIO configuration */
-	printk(KERN_INFO "comedi%d: pcl724: board=%s, 0x%03lx ", dev->minor,
-	       board->name, iobase);
-	if (!request_region(iobase, iorange, dev->board_name)) {
-		printk("I/O port conflict\n");
-		return -EIO;
-	}
-
-	dev->iobase = iobase;
+	ret = comedi_request_region(dev, it->options[0], iorange);
+	if (ret)
+		return ret;
 
 #ifdef PCL724_IRQ
 	irq = 0;
-- 
1.8.1.4




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