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

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>

diff --git a/drivers/staging/comedi/drivers/adv_pci1723.c b/drivers/staging/comedi/drivers/adv_pci1723.c
index 4803a8c8145930a6af2e356dc18e30c4cb79b16e..f561a2a605461f84fd576fdfc4a86da3704a42e3 100644 (file)
--- a/drivers/staging/comedi/drivers/adv_pci1723.c
+++ b/drivers/staging/comedi/drivers/adv_pci1723.c
@@ -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;
-
-       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 */
+       struct pci_dev *pcidev = NULL;
+       int bus = it->options[0];
+       int slot = it->options[1];
+
+       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;
+               return pcidev;
        }
-
-       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,