diff options
Diffstat (limited to 'drivers/pci/probe.c')
| -rw-r--r-- | drivers/pci/probe.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 60bada90cd75..a98be6db7e93 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -932,7 +932,8 @@ int pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, int pass) child = pci_add_new_bus(bus, dev, max+1); if (!child) goto out; - pci_bus_insert_busn_res(child, max+1, 0xff); + pci_bus_insert_busn_res(child, max+1, + bus->busn_res.end); } max++; buses = (buses & 0xff000000) @@ -2136,6 +2137,10 @@ unsigned int pci_scan_child_bus(struct pci_bus *bus) if (bus->self && bus->self->is_hotplug_bridge && pci_hotplug_bus_size) { if (max - bus->busn_res.start < pci_hotplug_bus_size - 1) max = bus->busn_res.start + pci_hotplug_bus_size - 1; + + /* Do not allocate more buses than we have room left */ + if (max > bus->busn_res.end) + max = bus->busn_res.end; } /* |