linux-kernel - Re: Kernel null pointer dereference on stopping raid device

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Date:   Wed, 14 Jun 2023 23:03:46 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Ayush Jain <ayush.jain3@....com>
Cc:     Christoph Hellwig <hch@...radead.org>,
        "sfr@...b.auug.org.au" <sfr@...b.auug.org.au>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        "Karny, Wyes" <Wyes.Karny@....com>, Jens Axboe <axboe@...nel.dk>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "V, Narasimhan" <Narasimhan.V@....com>,
        "Shetty, Kalpana" <Kalpana.Shetty@....com>,
        "Shukla, Santosh" <Santosh.Shukla@....com>
Subject: Re: Kernel null pointer dereference on stopping raid device

On Thu, Jun 15, 2023 at 11:14:02AM +0530, Ayush Jain wrote:
> > That was just a quick hack to verify the problem.  I think this is
> > the proper fix, can you try it as well?
> > 
> 
> Sure, this works on my machine.
> 
> Tested-by: Ayush Jain <ayush.jain3@....com>

So it turns out that Jens merged the md pull request for 6.5 yesterday,
and that includes and equivalent change in

3ce94ce5d05ae89190a23f6187f64d8f4b2d3782
Author: Yu Kuai <yukuai3@...wei.com>
Date:   Tue May 23 09:27:27 2023 +0800

    md: fix duplicate filename for rdev

With that I think we don't need an extra fix.  Sorry for all the
extra work.