netdev - Re: [PATCH 2/2] powerpc/ps3: make system bus's remove and shutdown callbacks return void

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Message-ID: <CAMuHMdW4J0xA6T4AWqZdo1go1kxWqVSSo5JXQpUAM4yWEpDdOw@mail.gmail.com>
Date:   Fri, 27 Nov 2020 09:40:04 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
Cc:     Geoff Levand <geoff@...radead.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Jens Axboe <axboe@...nel.dk>, Jim Paris <jim@...n.com>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Alan Stern <stern@...land.harvard.edu>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        ALSA Development Mailing List <alsa-devel@...a-project.org>,
        linux-block@...r.kernel.org, netdev <netdev@...r.kernel.org>,
        scsi <linux-scsi@...r.kernel.org>,
        USB list <linux-usb@...r.kernel.org>,
        DRI Development <dri-devel@...ts.freedesktop.org>,
        Linux Fbdev development list <linux-fbdev@...r.kernel.org>
Subject: Re: [PATCH 2/2] powerpc/ps3: make system bus's remove and shutdown
 callbacks return void

Hi Uwe,

On Thu, Nov 26, 2020 at 6:03 PM Uwe Kleine-König
<u.kleine-koenig@...gutronix.de> wrote:
> The driver core ignores the return value of struct device_driver::remove
> because there is only little that can be done. For the shutdown callback
> it's ps3_system_bus_shutdown() which ignores the return value.
>
> To simplify the quest to make struct device_driver::remove return void,
> let struct ps3_system_bus_driver::remove return void, too. All users
> already unconditionally return 0, this commit makes it obvious that
> returning an error code is a bad idea and ensures future users behave
> accordingly.
>
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>

Thanks for your patch!

Reviewed-by: Geert Uytterhoeven <geert@...ux-m68k.org>

Note that the same can be done for ps3_vuart_port_driver.remove().

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds