diff options
Diffstat (limited to 'drivers/base/bus.c')
| -rw-r--r-- | drivers/base/bus.c | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 76656acd00d4..050d86d0b872 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -362,8 +362,7 @@ static void device_remove_attrs(struct bus_type * bus, struct device * dev) * @dev: device being added * * - Add the device to its bus's list of devices. - * - Try to attach to driver. - * - Create link to device's physical location. + * - Create link to device's bus. */ int bus_add_device(struct device * dev) { @@ -372,11 +371,10 @@ int bus_add_device(struct device * dev) if (bus) { pr_debug("bus %s: add device %s\n", bus->name, dev->bus_id); - device_attach(dev); - klist_add_tail(&dev->knode_bus, &bus->klist_devices); error = device_add_attrs(bus, dev); if (!error) { sysfs_create_link(&bus->devices.kobj, &dev->kobj, dev->bus_id); + sysfs_create_link(&dev->kobj, &dev->bus->subsys.kset.kobj, "subsystem"); sysfs_create_link(&dev->kobj, &dev->bus->subsys.kset.kobj, "bus"); } } @@ -384,6 +382,22 @@ int bus_add_device(struct device * dev) } /** + * bus_attach_device - add device to bus + * @dev: device tried to attach to a driver + * + * - Try to attach to driver. + */ +void bus_attach_device(struct device * dev) +{ + struct bus_type * bus = dev->bus; + + if (bus) { + device_attach(dev); + klist_add_tail(&dev->knode_bus, &bus->klist_devices); + } +} + +/** * bus_remove_device - remove device from bus * @dev: device to be removed * @@ -395,6 +409,7 @@ int bus_add_device(struct device * dev) void bus_remove_device(struct device * dev) { if (dev->bus) { + sysfs_remove_link(&dev->kobj, "subsystem"); sysfs_remove_link(&dev->kobj, "bus"); sysfs_remove_link(&dev->bus->devices.kobj, dev->bus_id); device_remove_attrs(dev->bus, dev); @@ -732,14 +747,9 @@ EXPORT_SYMBOL_GPL(bus_for_each_dev); EXPORT_SYMBOL_GPL(bus_find_device); EXPORT_SYMBOL_GPL(bus_for_each_drv); -EXPORT_SYMBOL_GPL(bus_add_device); -EXPORT_SYMBOL_GPL(bus_remove_device); EXPORT_SYMBOL_GPL(bus_register); EXPORT_SYMBOL_GPL(bus_unregister); EXPORT_SYMBOL_GPL(bus_rescan_devices); -EXPORT_SYMBOL_GPL(get_bus); -EXPORT_SYMBOL_GPL(put_bus); -EXPORT_SYMBOL_GPL(find_bus); EXPORT_SYMBOL_GPL(bus_create_file); EXPORT_SYMBOL_GPL(bus_remove_file); |