[PATCH] bus: Make remove callback return void

[Johan Hovold]

On Tue, Jul 06, 2021 at 11:50:37AM +0200, Uwe Kleine-König 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.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>

>  drivers/staging/greybus/gbphy.c           | 4 +---

>  drivers/usb/serial/bus.c                  | 4 +---

>  include/linux/device/bus.h                | 2 +-

Acked-by: Johan Hovold <johan at kernel.org>