linux-kernel - Re: [PATCH] lib/group_cpus: fix NULL pointer dereference from group_cpus

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Message-ID: <666d233d-bfc7-601c-13c6-93e9f2e5796f@huaweicloud.com>
Date: Thu, 19 Jun 2025 21:27:22 +0800
From: Yu Kuai <yukuai1@...weicloud.com>
To: Ming Lei <ming.lei@...hat.com>, Yu Kuai <yukuai1@...weicloud.com>
Cc: akpm@...ux-foundation.org, tglx@...utronix.de, john.g.garry@...cle.com,
 axboe@...nel.dk, linux-kernel@...r.kernel.org, yi.zhang@...wei.com,
 yangerkun@...wei.com, johnny.chenyi@...wei.com,
 "yukuai (C)" <yukuai3@...wei.com>
Subject: Re: [PATCH] lib/group_cpus: fix NULL pointer dereference from
 group_cpus_evenly()

Hi,

在 2025/06/19 17:31, Ming Lei 写道:
> I'd suggest to check 'numgrps' explicitly, which is more readable than
> ZERO_PTR.

Ok.

Thanks for the review!
Kuai