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pinctrl: xway: Be sure to clamp return value

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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: Pramod Gurav <pramod.gurav@smartplayin.com>
Cc: John Crispin <blogic@openwrt.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-21 16:28:11 +01:00
parent 01a62834f9
commit e157369759
1 changed files with 1 additions and 1 deletions
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2
drivers/pinctrl/pinctrl-xway.c
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@ -660,7 +660,7 @@ static int xway_gpio_get(struct gpio_chip *chip, unsigned int pin)
{
struct ltq_pinmux_info *info = dev_get_drvdata(chip->parent);
return gpio_getbit(info->membase[0], GPIO_IN(pin), PORT_PIN(pin));
return !!gpio_getbit(info->membase[0], GPIO_IN(pin), PORT_PIN(pin));
}
static int xway_gpio_dir_in(struct gpio_chip *chip, unsigned int pin)