diff options
Diffstat (limited to 'drivers/pci/bus.c')
| -rw-r--r-- | drivers/pci/bus.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 52b54f053be..68f91a25259 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -133,7 +133,7 @@ int pci_bus_add_child(struct pci_bus *bus) * * Call hotplug for each new devices. */ -void pci_bus_add_devices(struct pci_bus *bus) +void pci_bus_add_devices(const struct pci_bus *bus) { struct pci_dev *dev; struct pci_bus *child; @@ -184,8 +184,10 @@ void pci_enable_bridges(struct pci_bus *bus) list_for_each_entry(dev, &bus->devices, bus_list) { if (dev->subordinate) { - retval = pci_enable_device(dev); - pci_set_master(dev); + if (atomic_read(&dev->enable_cnt) == 0) { + retval = pci_enable_device(dev); + pci_set_master(dev); + } pci_enable_bridges(dev->subordinate); } } |