Messages in this thread | | | Date | Mon, 20 Mar 2017 11:31:13 +0100 | From | Uwe Kleine-König <> | Subject | Re: [PATCH 4/4] tty/serial: sh-sci: remove uneeded IS_ERR_OR_NULL calls |
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Hello Geert,
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>
Best regards Uwe
-- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ |
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