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staging: comedi: dt2811: 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>
This commit is contained in:
H Hartley Sweeten 2013-04-09 16:18:23 -07:00 committed by Greg Kroah-Hartman
parent 3871a752ec
commit 6ca3f28b85
1 changed files with 3 additions and 11 deletions
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14
drivers/staging/comedi/drivers/dt2811.c
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@ -399,18 +399,10 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it)
struct dt2811_private *devpriv;
int ret;
struct comedi_subdevice *s;
unsigned long iobase;
iobase = it->options[0];
printk(KERN_INFO "comedi%d: dt2811:base=0x%04lx\n", dev->minor, iobase);
if (!request_region(iobase, DT2811_SIZE, dev->board_name)) {
printk(KERN_ERR "I/O port conflict\n");
return -EIO;
}
dev->iobase = iobase;
ret = comedi_request_region(dev, it->options[0], DT2811_SIZE);
if (ret)
return ret;
#if 0
outb(0, dev->iobase + DT2811_ADCSR);