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PCI: check if a bus is added when removing it 

When removing a bus, 'is_added' should be checked to make sure the
bus has been successfully added by pci_bus_add_child() who will sets
'is_added'.

Signed-off-by: Yu Zhao <yu.zhao@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Yu Zhao 2009-01-28 18:27:21 +08:00 committed by Jesse Barnes
parent 11df1f0551
commit 2b56313448
1 changed files with 3 additions and 0 deletions
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3
drivers/pci/remove.c
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@ -71,6 +71,9 @@ void pci_remove_bus(struct pci_bus *pci_bus)
down_write(&pci_bus_sem);
list_del(&pci_bus->node);
up_write(&pci_bus_sem);
if (!pci_bus->is_added)
return;
pci_remove_legacy_files(pci_bus);
device_remove_file(&pci_bus->dev, &dev_attr_cpuaffinity);
device_remove_file(&pci_bus->dev, &dev_attr_cpulistaffinity);