Re: [PATCH v3] sched/psi: fix use-after-free in ep_remove_wait_queue()

[Eric Biggers]

On Tue, Feb 14, 2023 at 10:13:35AM -0800, Munehisa Kamata wrote:
> Using wake_up_pollfree() here might be less than ideal, but it also is not
> fully contradicting the comment at commit 42288cb44c4b ("wait: add
> wake_up_pollfree()") since the waitqueue's lifetime is not tied to file's
> one and can be considered as another special case.

If that comment is outdated now, then please update the comment too.  We can do
better than "not fully contradicting".

- Eric