On Tue, Nov 27, 2018 at 04:24:41PM +0100, Hans de Goede wrote: > On 27-11-18 14:46, Andy Shevchenko wrote: > > On Tue, Nov 27, 2018 at 01:49:53PM +0200, Mika Westerberg wrote: > > > On Tue, Nov 27, 2018 at 10:16:25AM +0100, Hans de Goede wrote: > > > > One problem is that i2c_new_device() currently simply returns NULL on all > > > > errors. Andy, you could take a look how much work it is to make that return > > > > an ERR_PTR too, or just check its return value and return ERR_PTR(-ENXIO) if > > > > it fails for now... > > > > > > I would use -ENODEV here and -EINVAL in case there is no ACPI companion :) > > > > Sounds more traditional than ENXIO. > > I would go the way Mika proposed if there is no objection. > > Works for me, go for it. Just sent a new version, but dropped your Rb in that very patch. Please, check if everything is okay. -- With Best Regards, Andy Shevchenko