From: Chengguang Xu <cgxu519@mykernel.net>
To: "Gao Xiang" <gaoxiang25@huawei.com>
Cc: miaoxie <miaoxie@huawei.com>, xiang <xiang@kernel.org>,
linux-erofs <linux-erofs@lists.ozlabs.org>
Subject: Re: [PATCH] erofs: add error handling for erofs_fill_super()
Date: Wed, 20 Nov 2019 18:08:07 +0800 [thread overview]
Message-ID: <16e88489188.c48b2350794.7964821448665443701@mykernel.net> (raw)
In-Reply-To: <20191119125328.GA86789@architecture4>
---- 在 星期二, 2019-11-19 20:51:13 Gao Xiang <gaoxiang25@huawei.com> 撰写 ----
> Hi Chengguang,
>
> On Tue, Nov 19, 2019 at 07:37:44PM +0800, Chengguang Xu wrote:
> > There are some potential resource leaks in error case
> > of erofs_fill_super(), so add proper error handling
> > for it.
> >
> > Signed-off-by: Chengguang Xu <cgxu519@mykernel.net>
> > ---
> > fs/erofs/super.c | 31 +++++++++++++++++++++++--------
> > 1 file changed, 23 insertions(+), 8 deletions(-)
> >
> > diff --git a/fs/erofs/super.c b/fs/erofs/super.c
> > index 0e369494f2f2..06e721bd1c8c 100644
> > --- a/fs/erofs/super.c
> > +++ b/fs/erofs/super.c
> > @@ -369,7 +369,7 @@ static int erofs_fill_super(struct super_block *sb, void *data, int silent)
> > sb->s_fs_info = sbi;
> > err = erofs_read_superblock(sb);
> > if (err)
> > - return err;
> > + goto free;
>
> Could you give some hints what is the potential leak exactly?
> Actually, it was modified on purpose recently, see the following threads:
> https://lore.kernel.org/r/20190720224955.GD17978@ZenIV.linux.org.uk
> and
> https://lore.kernel.org/r/20190721040547.GF17978@ZenIV.linux.org.uk
Sorry, it seems I misread some part of code, please just drop the patch.
Thanks
next prev parent reply other threads:[~2019-11-20 10:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-19 11:37 [PATCH] erofs: add error handling for erofs_fill_super() Chengguang Xu
2019-11-19 12:53 ` Gao Xiang
2019-11-20 10:08 ` Chengguang Xu [this message]
2019-11-20 10:08 ` Chengguang Xu
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