staging: comedi: aio_aio12_8: use comedi_request_region()

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@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/aio_aio12_8.c b/drivers/staging/comedi/drivers/aio_aio12_8.c
index 14cee49..e37d4a8 100644 (file)
--- 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;