Re: [PATCH net-next v1 2/2] netpoll: avoid reference leaks

[David Miller <davem@davemloft.net>]

From: David Decotigny <decot@googlers.com>
Date: Tue, 8 Jul 2014 12:35:14 -0700

> Thanks for the feedback. This patch results from manual inspection of
> the code. I agree my commit description is abusive: in the case of
> bonding, I think everything is fine, there should be no ref leak,
> cleanup paths seem clean.
> 
> My point was to make things more predictable: ndo_netpoll_cleanup
> called anyways to acknowledge actual loss of a ref to npinfo,
> irrespective of whether it's the last ref or not. Without this patch,
> calling ndo_netpoll_cleanup would depend on some timing behavior, hard
> to predict, and users of the API have better be careful to reclaim the
> refs manually anyways: as a consequence, not sure this callback is
> actually required in its current inception.

You've increased my confusion rather than decreased it.

You fail to address the core issue in my feedback:

	Whoever drops the refcount to zero must be the one to invoke
	the cleanup function.

Please address this concisely, and directly.