When pci_create_root_bus() adds the new struct pci_bus to the global pci_root_buses list, the bus becomes visible to other parts of the kernel, so it should be fully initialized. This patch delays adding the bus to the pci_root_buses list until after all the struct pci_bus initialization is finished. --- drivers/pci/probe.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 7cc9e2f..da0d655 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -1551,10 +1551,6 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus, goto err_out; } - down_write(&pci_bus_sem); - list_add_tail(&b->node, &pci_root_buses); - up_write(&pci_bus_sem); - dev->parent = parent; dev->release = pci_release_bus_bridge_dev; dev_set_name(dev, "pci%04x:%02x", pci_domain_nr(b), bus); @@ -1594,6 +1590,10 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus, dev_info(&b->dev, "root bus resource %pR\n", res); } + down_write(&pci_bus_sem); + list_add_tail(&b->node, &pci_root_buses); + up_write(&pci_bus_sem); + return b; class_dev_reg_err: -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
