Kobject: convert net/bridge/br_if.c to use kobject_init/add_ng()

This converts the code to use the new kobject functions, cleaning up the
logic in doing so.

Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

net/bridge/br_if.c

@@ -258,12 +258,6 @@ static struct net_bridge_port *new_nbp(struct net_bridge *br,
 	p->state = BR_STATE_DISABLED;
 	br_stp_port_timer_init(p);
 
-	kobject_init(&p->kobj);
-	kobject_set_name(&p->kobj, SYSFS_BRIDGE_PORT_ATTR);
-	p->kobj.ktype = &brport_ktype;
-	p->kobj.parent = &(dev->dev.kobj);
-	p->kobj.kset = NULL;
-
 	return p;
 }
 
@@ -379,7 +373,8 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
 	if (IS_ERR(p))
 		return PTR_ERR(p);
 
-	err = kobject_add(&p->kobj);
+	err = kobject_init_and_add(&p->kobj, &brport_ktype, &(dev->dev.kobj),
+				   SYSFS_BRIDGE_PORT_ATTR);
 	if (err)
 		goto err0;
 
@@ -416,6 +411,7 @@ err2:
 	br_fdb_delete_by_port(br, p, 1);
 err1:
 	kobject_del(&p->kobj);
+	return err;
 err0:
 	kobject_put(&p->kobj);
 	return err;