diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/search.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/pci/search.c b/drivers/pci/search.c index c13232435dc..9f7090fa877 100644 --- a/drivers/pci/search.c +++ b/drivers/pci/search.c @@ -139,12 +139,14 @@ struct pci_dev * pci_get_slot(struct pci_bus *bus, unsigned int devfn) } /** - * pci_get_bus_and_slot - locate PCI device from a given PCI slot + * pci_get_bus_and_slot - locate PCI device from a given PCI bus & slot * @bus: number of PCI bus on which desired PCI device resides * @devfn: encodes number of PCI slot in which the desired PCI * device resides and the logical device number within that slot * in case of multi-function devices. * + * Note: the bus/slot search is limited to PCI domain (segment) 0. + * * Given a PCI bus and slot/function number, the desired PCI device * is located in system global list of PCI devices. If the device * is found, a pointer to its data structure is returned. If no @@ -157,7 +159,8 @@ struct pci_dev * pci_get_bus_and_slot(unsigned int bus, unsigned int devfn) struct pci_dev *dev = NULL; while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) { - if (dev->bus->number == bus && dev->devfn == devfn) + if (pci_domain_nr(dev->bus) == 0 && + (dev->bus->number == bus && dev->devfn == devfn)) return dev; } return NULL; |