From: David S. Miller <davem@xxxxxxxxxxxxx> commit 080bfa1e6d928a5d1f185cc44e5f3c251df06df5 upstream. This reverts commit 2055a99da8a253a357bdfd359b3338ef3375a26c. This change rejects legitimate configurations. A slave doesn't need to exist nor implement ndo_slave_setup. Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/net/bonding/bond_main.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -3918,15 +3918,11 @@ static int bond_neigh_init(struct neighb rcu_read_lock(); slave = bond_first_slave_rcu(bond); - if (!slave) { - ret = -EINVAL; + if (!slave) goto out; - } slave_ops = slave->dev->netdev_ops; - if (!slave_ops->ndo_neigh_setup) { - ret = -EINVAL; + if (!slave_ops->ndo_neigh_setup) goto out; - } /* TODO: find another way [1] to implement this. * Passing a zeroed structure is fragile,