Re: [PATCH v2 4/4] bus: Make remove callback return void
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- Subject: Re: [PATCH v2 4/4] bus: Make remove callback return void
- From: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
- Date: Thu, 8 Jul 2021 14:41:02 +0200
- Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, Sascha Hauer <kernel@xxxxxxxxxxxxxx>, Cornelia Huck <cohuck@xxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, Russell King <linux@xxxxxxxxxxxxxxx>, Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>, "James E.J. Bottomley" <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>, Helge Deller <deller@xxxxxx>, Geoff Levand <geoff@xxxxxxxxxxxxx>, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>, Paul Mackerras <paulus@xxxxxxxxx>, "Rafael J. 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- In-reply-to: <20210706154803.1631813-5-u.kleine-koenig@pengutronix.de>
- References: <20210706154803.1631813-1-u.kleine-koenig@pengutronix.de> <20210706154803.1631813-5-u.kleine-koenig@pengutronix.de>
On Tue, 6 Jul 2021 at 17:53, Uwe Kleine-König
<u.kleine-koenig@xxxxxxxxxxxxxx> wrote:
>
> The driver core ignores the return value of this callback because there
> is only little it can do when a device disappears.
>
> This is the final bit of a long lasting cleanup quest where several
> buses were converted to also return void from their remove callback.
> Additionally some resource leaks were fixed that were caused by drivers
> returning an error code in the expectation that the driver won't go
> away.
>
> With struct bus_type::remove returning void it's prevented that newly
> implemented buses return an ignored error code and so don't anticipate
> wrong expectations for driver authors.
>
> Acked-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx> (For ARM, Amba and related parts)
> Acked-by: Mark Brown <broonie@xxxxxxxxxx>
> Acked-by: Chen-Yu Tsai <wens@xxxxxxxx> (for drivers/bus/sunxi-rsb.c)
> Acked-by: Pali Rohár <pali@xxxxxxxxxx>
> Acked-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> (for drivers/media)
> Acked-by: Hans de Goede <hdegoede@xxxxxxxxxx> (For drivers/platform)
> Acked-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
> Acked-By: Vinod Koul <vkoul@xxxxxxxxxx>
> Acked-by: Juergen Gross <jgross@xxxxxxxx> (For Xen)
> Acked-by: Lee Jones <lee.jones@xxxxxxxxxx> (For drivers/mfd)
> Acked-by: Johannes Thumshirn <jth@xxxxxxxxxx> (For drivers/mcb)
> Acked-by: Johan Hovold <johan@xxxxxxxxxx>
> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx> (For drivers/slimbus)
> Acked-by: Kirti Wankhede <kwankhede@xxxxxxxxxx> (For drivers/vfio)
> Acked-by: Maximilian Luz <luzmaximilian@xxxxxxxxx>
> Acked-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx> (For ulpi and typec)
> Acked-by: Samuel Iglesias Gonsálvez <siglesias@xxxxxxxxxx> (For ipack)
> Reviewed-by: Tom Rix <trix@xxxxxxxxxx> (For fpga)
> Acked-by: Geoff Levand <geoff@xxxxxxxxxxxxx> (For ps3)
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Acked-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx> # For MMC
[...]
Kind regards
Uffe
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