From: H Hartley Sweeten Date: Tue, 9 Apr 2013 23:16:18 +0000 (-0700) Subject: staging: comedi: das800: use comedi_request_region() X-Git-Tag: firefly_0821_release~3680^2~674^2~156 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5c7fa612f48bfdaff2b655111bf46e5636b4f687;p=firefly-linux-kernel-4.4.55.git staging: comedi: das800: 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 Cc: Ian Abbott Cc: Greg Kroah-Hartman Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c index 14975f8e5b49..d56584d171c8 100644 --- a/drivers/staging/comedi/drivers/das800.c +++ b/drivers/staging/comedi/drivers/das800.c @@ -437,33 +437,19 @@ static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it) const struct das800_board *thisboard = comedi_board(dev); struct das800_private *devpriv; struct comedi_subdevice *s; - unsigned long iobase = it->options[0]; unsigned int irq = it->options[1]; unsigned long irq_flags; int board; int ret; - dev_info(dev->class_dev, "das800: io 0x%lx\n", iobase); - if (irq) - dev_dbg(dev->class_dev, "irq %u\n", irq); - devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL); if (!devpriv) return -ENOMEM; dev->private = devpriv; - if (iobase == 0) { - dev_err(dev->class_dev, - "io base address required for das800\n"); - return -EINVAL; - } - - /* check if io addresses are available */ - if (!request_region(iobase, DAS800_SIZE, "das800")) { - dev_err(dev->class_dev, "I/O port conflict\n"); - return -EIO; - } - dev->iobase = iobase; + ret = comedi_request_region(dev, it->options[0], DAS800_SIZE); + if (ret) + return ret; board = das800_probe(dev); if (board < 0) {