Commit 9dd90caf authored Mar 20, 2009 by Alex Chiang Committed by Jesse Barnes Mar 20, 2009

PCI: do not enable bridges more than once



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>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

parent b73e97d9

drivers/pci/bus.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -184,8 +184,10 @@ void pci_enable_bridges(struct pci_bus *bus)

		list_for_each_entry(dev, &bus->devices, bus_list) {
		if (dev->subordinate) {
		if (atomic_read(&dev->enable_cnt) == 0) {
		retval = pci_enable_device(dev);
		pci_set_master(dev);
		}
		pci_enable_bridges(dev->subordinate);
		}
		}