On Tue, Aug 12, 2014 at 9:43 AM, Yijing Wang <wangyijing@xxxxxxxxxx> wrote: > On 2014/8/12 8:31, Liu Ping Fan wrote: >> As the notes of this function, pci_get_domain_bus_and_slot() should >> increase the reference count. > > It had did it. > please refer to: > > #define for_each_pci_dev(d) while ((d = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, d)) != NULL) > Oh, got it. Thx! >> >> Signed-off-by: Liu Ping Fan <pingfank@xxxxxxxxxxxxxxxxxx> >> --- >> drivers/pci/search.c | 4 +++- >> 1 file changed, 3 insertions(+), 1 deletion(-) >> >> diff --git a/drivers/pci/search.c b/drivers/pci/search.c >> index 827ad83..41a5738 100644 >> --- a/drivers/pci/search.c >> +++ b/drivers/pci/search.c >> @@ -258,8 +258,10 @@ struct pci_dev *pci_get_domain_bus_and_slot(int domain, unsigned int bus, >> >> for_each_pci_dev(dev) { >> if (pci_domain_nr(dev->bus) == domain && >> - (dev->bus->number == bus && dev->devfn == devfn)) >> + (dev->bus->number == bus && dev->devfn == devfn)) { >> + pci_dev_get(dev); >> return dev; >> + } >> } >> return NULL; >> } >> > > > -- > Thanks! > Yijing > -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html