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SubjectRe: [PATCH 4/4] tty/serial: sh-sci: remove uneeded IS_ERR_OR_NULL calls
Hello Geert,

On Mon, Mar 20, 2017 at 11:38:52AM +0100, Geert Uytterhoeven wrote:
> On Mon, Mar 20, 2017 at 11:31 AM, Uwe Kleine-König
> <u.kleine-koenig@pengutronix.de> wrote:
> > On Mon, Mar 20, 2017 at 10:56:14AM +0100, Geert Uytterhoeven wrote:
> >> Documentation/gpio/consumer.txt rightfully sates:
> >> | Note that gpio_get*_optional() functions (and their managed variants), unlike
> >> | the rest of gpiolib API, also return NULL when gpiolib support is disabled.
> >> | This is helpful to driver authors, since they do not need to special case
> >> | -ENOSYS return codes. System integrators should however be careful to enable
> >> | gpiolib on systems that need it.
> >
> > I cannot find this paragraph in Documentation/gpio/consumer.txt:
> >
> > $ git grep -e 'ENOSYS' v4.11-rc3 -- Documentation/gpio/
> > <void>
>
> It was added by commit 22c403676dbbb7c6 ("gpio: return NULL from
> gpiod_get_optional when GPIOLIB is disabled")

Ah, that's in next.

I still think this is wrong and I'm a bit disappointed that Linus merged
this patch (without saying so in the thread even) as I thought Linus and
I agreed on this being a bad idea.

Best regards
Uwe

--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |

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