Commit 0c7f3f92 authored by Linus Walleij's avatar Linus Walleij Committed by Lee Jones

mfd: ucb1x00-core: Be sure to clamp return value

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: Lee Jones <lee.jones@linaro.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent a5dca7dc
...@@ -133,7 +133,7 @@ static int ucb1x00_gpio_get(struct gpio_chip *chip, unsigned offset) ...@@ -133,7 +133,7 @@ static int ucb1x00_gpio_get(struct gpio_chip *chip, unsigned offset)
val = ucb1x00_reg_read(ucb, UCB_IO_DATA); val = ucb1x00_reg_read(ucb, UCB_IO_DATA);
ucb1x00_disable(ucb); ucb1x00_disable(ucb);
return val & (1 << offset); return !!(val & (1 << offset));
} }
static int ucb1x00_gpio_direction_input(struct gpio_chip *chip, unsigned offset) static int ucb1x00_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
......
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