Re: [PATCH 10/10] drivers: misc: use module_platform_driver_probe()

From: Fabio Porcedda
Date: Tue Mar 19 2013 - 13:11:39 EST


On Tue, Mar 19, 2013 at 5:48 PM, Arnd Bergmann <arnd@xxxxxxxx> wrote:
> On Tuesday 19 March 2013, Geert Uytterhoeven wrote:
>> Hmm, so we may have drivers that (now) work perfectly fine with
>> module_platform_driver_probe()/platform_driver_probe(), but will start
>> failing suddenly in the future?
>
> They will fail if someone changes the initialization order. That would
> already break drivers before deferred probing support (and was the reason
> we added feature in the first place), but now we can be much more liberal
> with the order in which drivers are initialized, except when they are
> using platform_driver_probe()
>
>> I guess we need a big fat WARN_ON(-EPROBE_DEFER) in
>> platform_driver_probe() to catch these?
>
> Yes, very good idea.
>
> Arnd

If it's fine, I'll send a patch for that.

Regards
--
Fabio Porcedda
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/