diff options
| author | H Hartley Sweeten <hartleys@visionengravers.com> | 2012-07-18 19:01:52 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-19 16:51:38 -0700 |
| commit | bd8a9bc167483acf21dc291a5860b4d66853e391 (patch) | |
| tree | 6235948cc871e7c70a60e95ff43a6633d00328fe /drivers/staging/comedi/drivers/ke_counter.c | |
| parent | f2a64902e3c2ffa34b52e6ad13e8e3c40f6919c7 (diff) | |
staging: comedi: ke_counter: factor out the "find pci device" code
Factor the "find pci device" code out of the attach function.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/comedi/drivers/ke_counter.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/ke_counter.c | 37 |
1 files changed, 26 insertions, 11 deletions
diff --git a/drivers/staging/comedi/drivers/ke_counter.c b/drivers/staging/comedi/drivers/ke_counter.c index 019e91a9f143..f0b8652a1c47 100644 --- a/drivers/staging/comedi/drivers/ke_counter.c +++ b/drivers/staging/comedi/drivers/ke_counter.c @@ -122,18 +122,12 @@ static int cnt_rinsn(struct comedi_device *dev, return 1; } -static int cnt_attach(struct comedi_device *dev, struct comedi_devconfig *it) +static struct pci_dev *cnt_find_pci_dev(struct comedi_device *dev, + struct comedi_devconfig *it) { - struct comedi_subdevice *subdevice; - struct pci_dev *pci_device = NULL; struct cnt_board_struct *board; - unsigned long io_base; - int error, i; - - /* allocate device private structure */ - error = alloc_private(dev, sizeof(struct cnt_device_private)); - if (error < 0) - return error; + struct pci_dev *pci_device = NULL; + int i; /* Probe the device to determine what device in the series it is. */ for_each_pci_dev(pci_device) { @@ -166,14 +160,35 @@ static int cnt_attach(struct comedi_device *dev, struct comedi_devconfig *it) printk(KERN_WARNING "comedi%d: no supported board found! (req. bus/slot: %d/%d)\n", dev->minor, it->options[0], it->options[1]); - return -EIO; + return NULL; found: printk(KERN_INFO "comedi%d: found %s at PCI bus %d, slot %d\n", dev->minor, board->name, pci_device->bus->number, PCI_SLOT(pci_device->devfn)); + return pci_device; +} + +static int cnt_attach(struct comedi_device *dev, struct comedi_devconfig *it) +{ + struct pci_dev *pci_device; + struct comedi_subdevice *subdevice; + struct cnt_board_struct *board; + unsigned long io_base; + int error; + + /* allocate device private structure */ + error = alloc_private(dev, sizeof(struct cnt_device_private)); + if (error < 0) + return error; + + pci_device = cnt_find_pci_dev(dev, it); + if (!pci_device) + return -EIO; devpriv->pcidev = pci_device; + board = (struct cnt_board_struct *)dev->board_ptr; + dev->board_name = board->name; /* enable PCI device and request regions */ |