staging: comedi: dt2817: 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>

1 files changed, 3 insertions, 10 deletions

diff --git a/drivers/staging/comedi/drivers/dt2817.c b/drivers/staging/comedi/drivers/dt2817.c
index 0dd6dd0f2a3d..92b461e73ef7 100644
--- a/drivers/staging/comedi/drivers/dt2817.c
+++ b/drivers/staging/comedi/drivers/dt2817.c
@@ -126,15 +126,10 @@ static int dt2817_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 {
         int ret;
         struct comedi_subdevice *s;
-        unsigned long iobase;
 
-        iobase = it->options[0];
-        printk(KERN_INFO "comedi%d: dt2817: 0x%04lx ", dev->minor, iobase);
-        if (!request_region(iobase, DT2817_SIZE, "dt2817")) {
-                printk("I/O port conflict\n");
-                return -EIO;
-        }
-        dev->iobase = iobase;
+        ret = comedi_request_region(dev, it->options[0], DT2817_SIZE);
+        if (ret)
+                return ret;
 
         ret = comedi_alloc_subdevices(dev, 1);
         if (ret)
@@ -153,8 +148,6 @@ static int dt2817_attach(struct comedi_device *dev, struct comedi_devconfig *it)
         s->state = 0;
         outb(0, dev->iobase + DT2817_CR);
 
-        printk(KERN_INFO "\n");
-
         return 0;
 }