- if (dev->subordinate) {
- if (list_empty(&dev->subordinate->node)) {
- down_write(&pci_bus_sem);
- list_add_tail(&dev->subordinate->node,
- &dev->bus->children);
- up_write(&pci_bus_sem);
- }
- pci_bus_add_devices(dev->subordinate);
-
- /* register the bus with sysfs as the parent is now
- * properly registered. */
- child_bus = dev->subordinate;
- if (child_bus->is_added)
- continue;
- child_bus->dev.parent = child_bus->bridge;
- retval = device_register(&child_bus->dev);
- if (retval)
- dev_err(&dev->dev, "Error registering pci_bus,"
- " continuing...\n");
- else {
- child_bus->is_added = 1;
- retval = device_create_file(&child_bus->dev,
- &dev_attr_cpuaffinity);
- }
+ if (!child)
+ continue;
+ if (list_empty(&child->node)) {
+ down_write(&pci_bus_sem);
+ list_add_tail(&child->node, &dev->bus->children);
+ up_write(&pci_bus_sem);
+ }
+ pci_bus_add_devices(child);
+
+ /*
+ * register the bus with sysfs as the parent is now
+ * properly registered.
+ */
+ if (child->is_added)
+ continue;
+ child->dev.parent = child->bridge;
+ retval = device_register(&child->dev);
+ if (retval)
+ dev_err(&dev->dev, "Error registering pci_bus,"
+ " continuing...\n");
+ else {
+ child->is_added = 1;
+ retval = device_create_file(&child->dev,
+ &dev_attr_cpuaffinity);