android/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

staging: comedi: c6xdigio: use comedi_request_region()

Browse Source 
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>
This commit is contained in:
H Hartley Sweeten 2013-04-09 16:23:11 -07:00 committed by Greg Kroah-Hartman
parent ce573addb0
commit 02edcb2ade
1 changed files with 7 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/staging/comedi/drivers/c6xdigio.c
View File

@ -413,21 +413,16 @@ static struct pnp_driver c6xdigio_pnp_driver = {
static int c6xdigio_attach(struct comedi_device *dev,
struct comedi_devconfig *it)
{
int result = 0;
unsigned long iobase;
struct comedi_subdevice *s;
int ret;
iobase = it->options[0];
printk(KERN_DEBUG "comedi%d: c6xdigio: 0x%04lx\n", dev->minor, iobase);
if (!request_region(iobase, C6XDIGIO_SIZE, "c6xdigio")) {
printk(KERN_ERR "comedi%d: I/O port conflict\n", dev->minor);
return -EIO;
}
dev->iobase = iobase;
ret = comedi_request_region(dev, it->options[0], C6XDIGIO_SIZE);
if (ret)
return ret;
result = comedi_alloc_subdevices(dev, 2);
if (result)
return result;
ret = comedi_alloc_subdevices(dev, 2);
if (ret)
return ret;
/* Make sure that PnP ports get activated */
pnp_register_driver(&c6xdigio_pnp_driver);