driver core fixes: bus_add_device() cleanup on error

Correct cleanup in the error path of bus_add_device().

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

1 files changed, 15 insertions, 4 deletions

diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index b90f6e6f644..d516f7d5f16 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -372,19 +372,30 @@ int bus_add_device(struct device * dev)
                 pr_debug("bus %s: add device %s\n", bus->name, dev->bus_id);
                 error = device_add_attrs(bus, dev);
                 if (error)
-                        goto out;
+                        goto out_put;
                 error = sysfs_create_link(&bus->devices.kobj,
                                                 &dev->kobj, dev->bus_id);
                 if (error)
-                        goto out;
+                        goto out_id;
                 error = sysfs_create_link(&dev->kobj,
                                 &dev->bus->subsys.kset.kobj, "subsystem");
                 if (error)
-                        goto out;
+                        goto out_subsys;
                 error = sysfs_create_link(&dev->kobj,
                                 &dev->bus->subsys.kset.kobj, "bus");
+                if (error)
+                        goto out_deprecated;
         }
-out:
+        return 0;
+
+out_deprecated:
+        sysfs_remove_link(&dev->kobj, "subsystem");
+out_subsys:
+        sysfs_remove_link(&bus->devices.kobj, dev->bus_id);
+out_id:
+        device_remove_attrs(bus, dev);
+out_put:
+        put_bus(dev->bus);
         return error;
 }