diff options
| -rw-r--r-- | drivers/pci/hotplug/pciehp_core.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c index a2297db8081..07aa722bb12 100644 --- a/drivers/pci/hotplug/pciehp_core.c +++ b/drivers/pci/hotplug/pciehp_core.c @@ -255,6 +255,13 @@ static int pciehp_probe(struct pcie_device *dev) else if (pciehp_acpi_slot_detection_check(dev->port)) goto err_out_none; + if (!dev->port->subordinate) { + /* Can happen if we run out of bus numbers during probe */ + dev_err(&dev->device, + "Hotplug bridge without secondary bus, ignoring\n"); + goto err_out_none; + } + ctrl = pcie_init(dev); if (!ctrl) { dev_err(&dev->device, "Controller initialization failed\n"); |