On Tue, Dec 22, 2015 at 03:24:26PM +0100, Linus Walleij wrote:
> As we want gpio_chip .get() calls to be able to return negative
> error codes and propagate to drivers, we need to go over all
> drivers and make sure their return values are clamped to [0,1].
> We do this by using the ret = !!(val) design pattern.
>
> Cc: James Hogan <james.hogan@xxxxxxxxxx>
> Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Acked-by: James Hogan <james.hogan@xxxxxxxxxx>
Cheers
James
> ---
> drivers/gpio/gpio-tz1090.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpio/gpio-tz1090.c b/drivers/gpio/gpio-tz1090.c
> index 79ef6e1ce568..a4a822542ac1 100644
> --- a/drivers/gpio/gpio-tz1090.c
> +++ b/drivers/gpio/gpio-tz1090.c
> @@ -214,7 +214,7 @@ static int tz1090_gpio_get(struct gpio_chip *chip, unsigned int offset)
> {
> struct tz1090_gpio_bank *bank = to_bank(chip);
>
> - return tz1090_gpio_read_bit(bank, REG_GPIO_DIN, offset);
> + return !!tz1090_gpio_read_bit(bank, REG_GPIO_DIN, offset);
> }
>
> /*
> --
> 2.4.3
>
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