Re: [PATCH v2 4/4] bus: Make remove callback return void

[Cornelia Huck <cohuck@xxxxxxxxxx>]

On Tue, Jul 06 2021, 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>
> ---
>
>  drivers/s390/cio/ccwgroup.c               | 4 +---
>  drivers/s390/cio/css.c                    | 4 +---
>  drivers/s390/cio/device.c                 | 4 +---
>  drivers/s390/cio/scm.c                    | 4 +---
>  drivers/s390/crypto/ap_bus.c              | 4 +---
>  drivers/vfio/mdev/mdev_driver.c           | 4 +---

For drivers/s390 and drivers/vfio:

Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>