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staging: comedi: adv_pci1723: cleanup "find pci device" code

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Use for_each_pci_dev() instead of open-coding the loop using
pci_get_device().

Drop the printk error messages. They just add noise.

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>
This commit is contained in:
H Hartley Sweeten 2012-07-18 18:30:15 -07:00 committed by Greg Kroah-Hartman
parent 05979c7b3c
commit 3dbd666ca4
1 changed files with 16 additions and 45 deletions
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61
drivers/staging/comedi/drivers/adv_pci1723.c
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@ -290,59 +290,30 @@ static int pci1723_dio_insn_bits(struct comedi_device *dev,
static struct pci_dev *pci1723_find_pci_dev(struct comedi_device *dev,
struct comedi_devconfig *it)
{
struct pci_dev *pcidev;
unsigned int iobase;
unsigned char pci_bus, pci_slot, pci_func;
int opt_bus, opt_slot;
const char *errstr;
struct pci_dev *pcidev = NULL;
int bus = it->options[0];
int slot = it->options[1];
opt_bus = it->options[0];
opt_slot = it->options[1];
/* Look for matching PCI device */
errstr = "not found!";
pcidev = NULL;
while (NULL != (pcidev =
pci_get_device(PCI_VENDOR_ID_ADVANTECH,
this_board->device_id, pcidev))) {
/* Found matching vendor/device. */
if (opt_bus || opt_slot) {
/* Check bus/slot. */
if (opt_bus != pcidev->bus->number
|| opt_slot != PCI_SLOT(pcidev->devfn))
continue; /* no match */
for_each_pci_dev(pcidev) {
if (bus || slot) {
if (bus != pcidev->bus->number ||
slot != PCI_SLOT(pcidev->devfn))
continue;
}
if (pcidev->vendor != PCI_VENDOR_ID_ADVANTECH)
continue;
/*
* Look for device that isn't in use.
* Enable PCI device and request regions.
*/
if (comedi_pci_enable(pcidev, "adv_pci1723")) {
errstr =
"failed to enable PCI device and request regions!";
if (comedi_pci_enable(pcidev, "adv_pci1723"))
continue;
}
break;
}
if (!pcidev) {
if (opt_bus || opt_slot) {
printk(KERN_ERR " - Card at b:s %d:%d %s\n",
opt_bus, opt_slot, errstr);
} else {
printk(KERN_ERR " - Card %s\n", errstr);
}
return NULL;
}
pci_bus = pcidev->bus->number;
pci_slot = PCI_SLOT(pcidev->devfn);
pci_func = PCI_FUNC(pcidev->devfn);
iobase = pci_resource_start(pcidev, 2);
printk(KERN_ERR ", b:s:f=%d:%d:%d, io=0x%4x",
pci_bus, pci_slot, pci_func, iobase);
return pcidev;
}
dev_err(dev->class_dev,
"No supported board found! (req. bus %d, slot %d)\n",
bus, slot);
return NULL;
}
static int pci1723_attach(struct comedi_device *dev,