net: bonding: Give bond_set_dev_addr() a return value
Before NETDEV_CHANGEADDR, bond driver should emit NETDEV_PRE_CHANGEADDR, and allow consumers to veto the address change. To propagate further the return code from NETDEV_PRE_CHANGEADDR, give the function that implements address change a return value. Signed-off-by: NPetr Machata <petrm@mellanox.com> Acked-by: NJiri Pirko <jiri@mellanox.com> Reviewed-by: NIdo Schimmel <idosch@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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