netdev - Re: question about memory leak in ip_mc_del1

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Message-ID: <3f48c0a1-f523-ac55-451a-2460050b0ee3@huawei.com>
Date:   Tue, 5 Mar 2019 11:33:03 +0800
From:   maowenan <maowenan@...wei.com>
To:     David Miller <davem@...emloft.net>
CC:     <edumazet@...gle.com>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <kuznet@....inr.ac.ru>
Subject: Re: question about memory leak in ip_mc_del1_src



On 2019/3/5 2:16, David Miller wrote:
> From: maowenan <maowenan@...wei.com>
> Date: Mon, 4 Mar 2019 20:47:42 +0800
> 
>> 			pmc->tomb = psf;
>> 			rv = 1;         //if it does not kfree(psf), will it lead to memory leak after this line?
> 
> pmc->tomb points to psf, why should we free it?

Thank you David.
Yes, pmc->tomb points to psf, but this is a delete path
for ip_mc_add1_src, if we don't free psf, where it can be done?
I'm not clear here.

> 
> .
>