Hi,
  In drivers/net/macvlan.c, when rtnl_link_register() fails
in macvlan_init_module(), there is no point to set it (second time in this
method) to macvlan_handle_frame; macvlan_init_module() will return a negative
number, so instead this patch sets macvlan_handle_frame_hook to NULL.

Regards,
Rami Rosen


Signed-off-by: Rami Rosen <ramirose@gmail.com>