From: MyungJoo Ham <myungjoo.ham@samsung.com>
To: zhong jiang <zhongjiang@huawei.com>,
Kyungmin Park <kyungmin.park@samsung.com>
Cc: Chanwoo Choi <cw00.choi@samsung.com>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH] PM / devfreq: remove redundant null pointer check before kfree
Date: Thu, 27 Sep 2018 11:25:36 +0900 [thread overview]
Message-ID: <529236451.01538015400755.JavaMail.epsvc@epcpmgr01> (raw)
In-Reply-To: <1537535923-46240-1-git-send-email-zhongjiang@huawei.com>
> kfree has taken the null pointer into account. hence it is safe
> to remove the redundant null pointer check before kfree.
>
> Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
> ---
> drivers/devfreq/devfreq.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
> index 4c49bb1..c37021d 100644
> --- a/drivers/devfreq/devfreq.c
> +++ b/drivers/devfreq/devfreq.c
> @@ -675,8 +675,7 @@ struct devfreq *devfreq_add_device(struct device *dev,
> device_unregister(&devfreq->dev);
> devfreq = NULL;
> err_dev:
> - if (devfreq)
> - kfree(devfreq);
> + kfree(devfreq);
> err_out:
> return ERR_PTR(err);
> }
> --
> 1.7.12.4
--
MyungJoo Ham (함명주), Ph.D.
Autonomous Machine Lab., AI Center, Samsung Research.
Cell: +82-10-6714-2858
prev parent reply other threads:[~2018-09-27 2:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20180921133110epcas4p3d2914c21c881e2dfb6a2e2d9708f7a43@epcms1p7>
2018-09-21 13:18 ` [PATCH] PM / devfreq: remove redundant null pointer check before kfree zhong jiang
2018-09-27 2:25 ` MyungJoo Ham [this message]
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