From 6bb3395e4b1f497030ea14103ab110e33e1eabd8 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 9 Apr 2013 16:33:40 -0700 Subject: [PATCH] staging: comedi: ni_at_ao: use comedi_request_region() Use comedi_request_region() to request the I/O region used by this driver. Remove the board attach noise 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 --- drivers/staging/comedi/drivers/ni_at_ao.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c index be4e1e111480..4a6eddfbdfd0 100644 --- a/drivers/staging/comedi/drivers/ni_at_ao.c +++ b/drivers/staging/comedi/drivers/ni_at_ao.c @@ -337,22 +337,14 @@ static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it) const struct atao_board *board = comedi_board(dev); struct atao_private *devpriv; struct comedi_subdevice *s; - unsigned long iobase; int ao_unipolar; int ret; - iobase = it->options[0]; - if (iobase == 0) - iobase = 0x1c0; ao_unipolar = it->options[3]; - printk(KERN_INFO "comedi%d: ni_at_ao: 0x%04lx", dev->minor, iobase); - - if (!request_region(iobase, ATAO_SIZE, dev->board_name)) { - printk(" I/O port conflict\n"); - return -EIO; - } - dev->iobase = iobase; + ret = comedi_request_region(dev, it->options[0], ATAO_SIZE); + if (ret) + return ret; devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL); if (!devpriv) -- 2.39.2