Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762232AbYAYHkl (ORCPT ); Fri, 25 Jan 2008 02:40:41 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758579AbYAYHSs (ORCPT ); Fri, 25 Jan 2008 02:18:48 -0500 Received: from mail.suse.de ([195.135.220.2]:52964 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759223AbYAYHSn (ORCPT ); Fri, 25 Jan 2008 02:18:43 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , Kay Sievers Subject: [PATCH 072/196] kset: convert struct bus_device->drivers to use kset_create Date: Thu, 24 Jan 2008 23:10:10 -0800 Message-Id: <1201245134-4876-72-git-send-email-gregkh@suse.de> X-Mailer: git-send-email 1.5.3.8 In-Reply-To: <20080125071127.GA4860@kroah.com> References: <20080125071127.GA4860@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3285 Lines: 97 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 Signed-off-by: Greg Kroah-Hartman --- drivers/base/bus.c | 15 ++++++++------- drivers/base/driver.c | 2 +- include/linux/device.h | 2 +- 3 files changed, 10 insertions(+), 9 deletions(-) diff --git a/drivers/base/bus.c b/drivers/base/bus.c index b23eeb2..6796d3e 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -638,7 +638,7 @@ int bus_add_driver(struct device_driver *drv) error = kobject_set_name(&drv->kobj, "%s", drv->name); if (error) goto out_put_bus; - drv->kobj.kset = &bus->drivers; + drv->kobj.kset = bus->drivers_kset; drv->kobj.ktype = &driver_ktype; error = kobject_register(&drv->kobj); if (error) @@ -869,11 +869,12 @@ int bus_register(struct bus_type * bus) goto bus_devices_fail; } - kobject_set_name(&bus->drivers.kobj, "drivers"); - bus->drivers.kobj.parent = &bus->subsys.kobj; - retval = kset_register(&bus->drivers); - if (retval) + bus->drivers_kset = kset_create_and_add("drivers", NULL, + &bus->subsys.kobj); + if (!bus->drivers_kset) { + retval = -ENOMEM; goto bus_drivers_fail; + } klist_init(&bus->klist_devices, klist_devices_get, klist_devices_put); klist_init(&bus->klist_drivers, NULL, NULL); @@ -893,7 +894,7 @@ int bus_register(struct bus_type * bus) bus_attrs_fail: remove_probe_files(bus); bus_probe_files_fail: - kset_unregister(&bus->drivers); + kset_unregister(bus->drivers_kset); bus_drivers_fail: kset_unregister(bus->devices_kset); bus_devices_fail: @@ -916,7 +917,7 @@ void bus_unregister(struct bus_type * bus) pr_debug("bus %s: unregistering\n", bus->name); bus_remove_attrs(bus); remove_probe_files(bus); - kset_unregister(&bus->drivers); + kset_unregister(bus->drivers_kset); kset_unregister(bus->devices_kset); bus_remove_file(bus, &bus_attr_uevent); subsystem_unregister(&bus->subsys); diff --git a/drivers/base/driver.c b/drivers/base/driver.c index eb11475..1c9770d 100644 --- a/drivers/base/driver.c +++ b/drivers/base/driver.c @@ -185,7 +185,7 @@ void driver_unregister(struct device_driver * drv) */ struct device_driver *driver_find(const char *name, struct bus_type *bus) { - struct kobject *k = kset_find_obj(&bus->drivers, name); + struct kobject *k = kset_find_obj(bus->drivers_kset, name); if (k) return to_drv(k); return NULL; diff --git a/include/linux/device.h b/include/linux/device.h index 82c2777..110ace0 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -54,7 +54,7 @@ struct bus_type { struct module * owner; struct kset subsys; - struct kset drivers; + struct kset *drivers_kset; struct kset *devices_kset; struct klist klist_devices; struct klist klist_drivers; -- 1.5.3.8 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/