Re: kfree(NULL)

[Paul Mackerras]

Pekka Enberg writes:

> No, it's not the janitors fault that we have paths doing lots of
> kfree(NULL) calls. NULL check removal didn't create the problem, but
> it makes it more visible definitely.

There is a judgement to be made at each call site of kfree (and
similar functions) about whether the argument is rarely NULL, or could
often be NULL.  If the janitors have been making this judgement, I
apologise, but I haven't seen them doing that.

Paul.
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