kset: convert struct bus_device->devices to use kset_create
Dynamically create the kset instead of declaring it statically.
Having 3 static kobjects in one structure is not only foolish, but ripe
for nasty race conditions if handled improperly. We also rename the
field to catch any potential users of it (not that there should be
outside of the driver core...)
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index e3b1010..b23eeb2 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -449,7 +449,7 @@
error = device_add_attrs(bus, dev);
if (error)
goto out_put;
- error = sysfs_create_link(&bus->devices.kobj,
+ error = sysfs_create_link(&bus->devices_kset->kobj,
&dev->kobj, dev->bus_id);
if (error)
goto out_id;
@@ -466,7 +466,7 @@
out_deprecated:
sysfs_remove_link(&dev->kobj, "subsystem");
out_subsys:
- sysfs_remove_link(&bus->devices.kobj, dev->bus_id);
+ sysfs_remove_link(&bus->devices_kset->kobj, dev->bus_id);
out_id:
device_remove_attrs(bus, dev);
out_put:
@@ -512,7 +512,7 @@
if (dev->bus) {
sysfs_remove_link(&dev->kobj, "subsystem");
remove_deprecated_bus_links(dev);
- sysfs_remove_link(&dev->bus->devices.kobj, dev->bus_id);
+ sysfs_remove_link(&dev->bus->devices_kset->kobj, dev->bus_id);
device_remove_attrs(dev->bus, dev);
if (dev->is_registered) {
dev->is_registered = 0;
@@ -862,11 +862,12 @@
if (retval)
goto bus_uevent_fail;
- kobject_set_name(&bus->devices.kobj, "devices");
- bus->devices.kobj.parent = &bus->subsys.kobj;
- retval = kset_register(&bus->devices);
- if (retval)
+ bus->devices_kset = kset_create_and_add("devices", NULL,
+ &bus->subsys.kobj);
+ if (!bus->devices_kset) {
+ retval = -ENOMEM;
goto bus_devices_fail;
+ }
kobject_set_name(&bus->drivers.kobj, "drivers");
bus->drivers.kobj.parent = &bus->subsys.kobj;
@@ -894,7 +895,7 @@
bus_probe_files_fail:
kset_unregister(&bus->drivers);
bus_drivers_fail:
- kset_unregister(&bus->devices);
+ kset_unregister(bus->devices_kset);
bus_devices_fail:
bus_remove_file(bus, &bus_attr_uevent);
bus_uevent_fail:
@@ -916,7 +917,7 @@
bus_remove_attrs(bus);
remove_probe_files(bus);
kset_unregister(&bus->drivers);
- kset_unregister(&bus->devices);
+ kset_unregister(bus->devices_kset);
bus_remove_file(bus, &bus_attr_uevent);
subsystem_unregister(&bus->subsys);
}