driver core fixes: bus_add_attrs() retval check

Check return value of bus_add_attrs() in bus_register().

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 12173d16bea7..b90f6e6f6442 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -732,11 +732,15 @@ int bus_register(struct bus_type * bus)
 
         klist_init(&bus->klist_devices, klist_devices_get, klist_devices_put);
         klist_init(&bus->klist_drivers, NULL, NULL);
-        bus_add_attrs(bus);
+        retval = bus_add_attrs(bus);
+        if (retval)
+                goto bus_attrs_fail;
 
         pr_debug("bus type '%s' registered\n", bus->name);
         return 0;
 
+bus_attrs_fail:
+        kset_unregister(&bus->drivers);
 bus_drivers_fail:
         kset_unregister(&bus->devices);
 bus_devices_fail: