staging: comedi: pcl818: 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/pcl818.c b/drivers/staging/comedi/drivers/pcl818.c
index e4df63e..6540186 100644 (file)
--- a/drivers/staging/comedi/drivers/pcl818.c
+++ b/drivers/staging/comedi/drivers/pcl818.c
@@ -1594,7 +1594,6 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
        const struct pcl818_board *board = comedi_board(dev);
        struct pcl818_private *devpriv;
        int ret;
-       unsigned long iobase;
        unsigned int irq;
        int dma;
        unsigned long pages;
@@ -1605,25 +1604,17 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
                return -ENOMEM;
        dev->private = devpriv;
 
-       /* claim our I/O space */
-       iobase = it->options[0];
-       printk
-           ("comedi%d: pcl818:  board=%s, ioport=0x%03lx",
-            dev->minor, board->name, iobase);
        devpriv->io_range = board->io_range;
        if ((board->fifo) && (it->options[2] == -1)) {
                /*  we've board with FIFO and we want to use FIFO */
                devpriv->io_range = PCLx1xFIFO_RANGE;
                devpriv->usefifo = 1;
        }
-       if (!request_region(iobase, devpriv->io_range, dev->board_name)) {
-               comedi_error(dev, "I/O port conflict\n");
-               return -EIO;
-       }
-
-       dev->iobase = iobase;
+       ret = comedi_request_region(dev, it->options[0], devpriv->io_range);
+       if (ret)
+               return ret;
 
-       if (pcl818_check(iobase)) {
+       if (pcl818_check(dev->iobase)) {
                comedi_error(dev, "I can't detect board. FAIL!\n");
                return -EIO;
        }