Re: [PATCH v1 0/4] gpio: make gpiod_count() API consistent

[Benjamin Tissoires <benjamin.tissoires@redhat.com>]

On Feb 20 2017 or thereabouts, Andy Shevchenko wrote:
> There are three possibilities in gpiod_count(): ACPI, OF, and
> platform data.
> 
> Some of them return 0, which requires to be handled separately, though
> developers rather lazy and just shadow an actual error code.
> 
> Let's make this API consistent by not allowing 0 in returned value.
> 
> There are luckily only 3 users right now, one of them handles this
> properly, the rest is converted in this series.
> 
> Series is supposed to go through GPIO tree.
> 
> Andy Shevchenko (4):
>   gpio: acpi: Don't return 0 on acpi_gpio_count()
>   gpio: of: Don't return 0 on dt_gpio_count()
>   platform/x86: surface3_button: Propagate error from gpiod_count()
>   Input: soc_button_array - Propagate error from gpiod_count()

Not sure if this still matters, but still:
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>

Cheers,
Benjamin

> 
>  drivers/gpio/gpiolib-acpi.c            | 4 ++--
>  drivers/gpio/gpiolib.c                 | 4 ++--
>  drivers/input/misc/soc_button_array.c  | 5 +++--
>  drivers/platform/x86/surface3_button.c | 5 +++--
>  4 files changed, 10 insertions(+), 8 deletions(-)
> 
> -- 
> 2.11.0
>