On Mon, Aug 31, 2020 at 09:16:32AM +0900, Toshiaki Makita wrote: > On 2020/08/30 22:13, Rustam Kovhaev wrote: > > when register_netdevice(dev) fails we should check whether struct > > veth_rq has been allocated via ndo_init callback and free it, because, > > depending on the code path, register_netdevice() might not call > > priv_destructor() callback > > AFAICS, register_netdevice() always goto err_uninit and calls > priv_destructor() > on failure after ndo_init() succeeded. > So I could not find such a code path. > Would you elaborate on it?
in net/core/dev.c:9863, where register_netdevice() calls rollback_registered(), which does not call priv_destructor(), then register_netdevice() returns error net/core/dev.c:9884
