Re: [v2] workqueue: Fix double kfree for rescuer

[Markus Elfring]

> I see, kfree does nothing with null pointers and direct return.
> but again kfree is not a good suggestion.

I have got the impression that the implementation detail is important here
if non-null pointers (according to valid rescuer objects) are occasionally
passed by the corresponding data structure member for the callback
function ârcu_free_wqâ.
Can another clarification attempt reduce unwanted confusion for this patch review?

Regards,
Markus