Re: [PATCH] Driver Core patches for 2.6.6

[Greg KH <greg@kroah.com>]

ChangeSet 1.1587.5.21, 2004/05/05 15:10:00-07:00, bellucda@tiscali.it

[PATCH] missing audit in bus_register()

|How about using a goto on the error path to clean up properly
|instead of the different return sections.

.. here goes Take 2:


 drivers/base/bus.c |   21 ++++++++++++++++++---
 1 files changed, 18 insertions(+), 3 deletions(-)


diff -Nru a/drivers/base/bus.c b/drivers/base/bus.c
--- a/drivers/base/bus.c	Fri May 14 15:57:45 2004
+++ b/drivers/base/bus.c	Fri May 14 15:57:45 2004
@@ -555,21 +555,36 @@
  */
 int bus_register(struct bus_type * bus)
 {
+	int retval;
+
 	kobject_set_name(&bus->subsys.kset.kobj,bus->name);
 	subsys_set_kset(bus,bus_subsys);
-	subsystem_register(&bus->subsys);
+	retval = subsystem_register(&bus->subsys);
+	if (retval) 
+		goto out;
 
 	kobject_set_name(&bus->devices.kobj, "devices");
 	bus->devices.subsys = &bus->subsys;
-	kset_register(&bus->devices);
+	retval = kset_register(&bus->devices);
+	if (retval)
+		goto bus_devices_fail;
 
 	kobject_set_name(&bus->drivers.kobj, "drivers");
 	bus->drivers.subsys = &bus->subsys;
 	bus->drivers.ktype = &ktype_driver;
-	kset_register(&bus->drivers);
+	retval = kset_register(&bus->drivers);
+	if (retval)
+		goto bus_drivers_fail;
 
 	pr_debug("bus type '%s' registered\n",bus->name);
 	return 0;
+
+bus_drivers_fail:
+	kset_unregister(&bus->devices);
+bus_devices_fail:
+	subsystem_unregister(&bus->subsys);
+out:
+	return retval;
 }