[PATCH] bus: Make remove callback return void

Pali Rohár pali at kernel.org
Tue Jul 6 12:25:42 CEST 2021


On Tuesday 06 July 2021 11:50:37 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>

Acked-by: Pali Rohár <pali at kernel.org>

> ---
> Hello,
> 
> this patch depends on "PCI: endpoint: Make struct pci_epf_driver::remove
> return void" that is not yet applied, see
> https://lore.kernel.org/r/20210223090757.57604-1-u.kleine-koenig@pengutronix.de.
> 
> I tested it using allmodconfig on amd64 and arm, but I wouldn't be
> surprised if I still missed to convert a driver. So it would be great to
> get this into next early after the merge window closes.
> 
> I send this mail to all people that get_maintainer.pl emits for this
> patch. I wonder how many recipents will refuse this mail because of the
> long Cc: list :-)
> 
> Best regards
> Uwe


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