Re: [PATCH] bus: Make remove callback return void

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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.

Yay!

>
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
> ---
> 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@xxxxxxxxxxxxxx.
>
> 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'm afraid you missed the s390-specific busses in drivers/s390/cio/
(css/ccw/ccwgroup).

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