On Tue, Jul 06 2021, Uwe Kleine-König u.kleine-koenig@pengutronix.de 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@pengutronix.de
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....
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).