| Message ID | 20090320205620.12275.52427.stgit@bob.kio (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Headers | show |
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 118c777..68f91a2 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -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); } }
In preparation for PCI core hotplug, we need to ensure that we do not attempt to re-enable bridges that have already been enabled. Reported-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Alex Chiang <achiang@hp.com> --- drivers/pci/bus.c | 6 ++++-- 1 files changed, 4 insertions(+), 2 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html