diff options
| -rw-r--r-- | drivers/pci/probe.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index bafb3c3d4a89..f03ed96533d5 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -724,12 +724,14 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, pci_write_config_word(dev, PCI_STATUS, 0xffff); /* Prevent assigning a bus number that already exists. - * This can happen when a bridge is hot-plugged */ - if (pci_find_bus(pci_domain_nr(bus), max+1)) - goto out; - child = pci_add_new_bus(bus, dev, ++max); - if (!child) - goto out; + * This can happen when a bridge is hot-plugged, so in + * this case we only re-scan this bus. */ + child = pci_find_bus(pci_domain_nr(bus), max+1); + if (!child) { + child = pci_add_new_bus(bus, dev, ++max); + if (!child) + goto out; + } buses = (buses & 0xff000000) | ((unsigned int)(child->primary) << 0) | ((unsigned int)(child->secondary) << 8) |