Re: [PATCH] slab: drop unneeded NULL-pointer check in kfree auto cleanup

[Peter Zijlstra]

On Tue, Sep 12, 2023 at 10:26:43AM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
> 
> kfree() already accepts and silently ignores NULL-pointers, there's no
> need to check it when running the auto cleanup routine.

There is, because now the compiler can't help you anymore. Also see:

  https://lkml.kernel.org/r/169451499208.27769.5856056754166699857.tip-bot2@tip-bot2