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From: Markus Elfring <Markus.Elfring@web.de>
To: Wu Bo <wubo40@huawei.com>,
	cgroups@vger.kernel.org, linux-block@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org,
	Feilong Lin <linfeilong@huawei.com>, Jens Axboe <axboe@kernel.dk>,
	Tejun Heo <tj@kernel.org>,
	Zhiqiang Liu <liuzhiqiang26@huawei.com>
Subject: Re: [PATCH] blkcg: Fix memory leak in blkg_conf_prep()
Date: Fri, 15 May 2020 17:08:24 +0200	[thread overview]
Message-ID: <4c670a6c-98c3-2b14-7438-09199506d92f@web.de> (raw)

…
> new_blkg = blkg_alloc(pos, q, GFP_KERNEL);
…

I suggest to omit the source code quotation from the change description.


> if calling blkg_lookup_check() failed, at the IS_ERR block,
> the new_blkg should be free before goto lable fail_unlock
> in blkg_conf_prep() function.

How do you think about a wording variant like the following?

  If a call of the function “blkg_lookup_check” failed,
  release the previously allocated block group before jumping
  to the target “fail_unlock” in the implementation of
  the function “blkg_conf_prep”.


Would you like to add the tag “Fixes” to the commit message?

Regards,
Markus

             reply	other threads:[~2020-05-15 15:08 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-15 15:08 Markus Elfring [this message]
2020-05-18 11:34 ` [PATCH] blkcg: Fix memory leak in blkg_conf_prep() Wu Bo

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