linux-kernel - Re: [PATCH 01/15] z2ram: add error handling support for add

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Message-ID: <YS/XZeu3J3nAXUll@bombadil.infradead.org>
Date:   Wed, 1 Sep 2021 12:41:25 -0700
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Jens Axboe <axboe@...nel.dk>, justin@...aid.com,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Hannes Reinecke <hare@...e.de>, Tejun Heo <tj@...nel.org>,
        Philipp Reisner <philipp.reisner@...bit.com>,
        Lars Ellenberg <lars.ellenberg@...bit.com>,
        Jeff Dike <jdike@...toit.com>,
        Richard Weinberger <richard@....at>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        Johannes Berg <johannes.berg@...el.com>,
        chris.obbard@...labora.com,
        Gabriel Krisman Bertazi <krisman@...labora.com>,
        YiFei Zhu <zhuyifei1999@...il.com>, thehajime@...il.com,
        Chris Zankel <chris@...kel.net>,
        Max Filippov <jcmvbkbc@...il.com>,
        Tim Waugh <tim@...erelk.net>,
        "open list:TENSILICA XTENSA PORT (xtensa)" 
        <linux-xtensa@...ux-xtensa.org>,
        linux-um <linux-um@...ts.infradead.org>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        Lars Ellenberg <drbd-dev@...ts.linbit.com>,
        linux-block@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 01/15] z2ram: add error handling support for add_disk()

On Wed, Sep 01, 2021 at 03:41:47PM +0200, Geert Uytterhoeven wrote:
> > --- a/drivers/block/z2ram.c
> > +++ b/drivers/block/z2ram.c
> > @@ -333,8 +334,10 @@ static int z2ram_register_disk(int minor)
> >                 sprintf(disk->disk_name, "z2ram");
> >
> >         z2ram_gendisk[minor] = disk;
> > -       add_disk(disk);
> > -       return 0;
> > +       err = add_disk(disk);
> > +       if (err)
> > +               blk_cleaup_disk(disk);
> 
> blk_cleanup_disk()?

Fixed thanks.

  Luis