[PATCH] bus: Make remove callback return void

[Russell King (Oracle)]

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>

Yay! For ARM, Amba and related parts:

Acked-by: Russell King (Oracle) <rmk+kernel at armlinux.org.uk>

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