Re: [v3] workqueue: Fix double kfree for rescuer

From: Markus Elfring
Date: Tue May 26 2020 - 06:34:48 EST

> There is something wrong with my description. is it feasible to describe as follows:
> The resucer is already free in "destroy_workqueue" and
> "wq->rescuer = NULL" was executed, but in "rcu_free_wq"
> it's release again (equivalent to kfree(NULL)), this is
> unnecessary, so should remove.

I find that this suggestion indicates further wording challenges.
Please try another variant.