From 01a62834f983455806b9e522c33d2670b83b1e52 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 21 Dec 2015 16:25:11 +0100 Subject: [PATCH] pinctrl: coh901: 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. Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-coh901.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c index e1cbf56df4b2..ca0fa79a286c 100644 --- a/drivers/pinctrl/pinctrl-coh901.c +++ b/drivers/pinctrl/pinctrl-coh901.c @@ -221,7 +221,7 @@ static int u300_gpio_get(struct gpio_chip *chip, unsigned offset) { struct u300_gpio *gpio = to_u300_gpio(chip); - return readl(U300_PIN_REG(offset, dir)) & U300_PIN_BIT(offset); + return !!(readl(U300_PIN_REG(offset, dir)) & U300_PIN_BIT(offset)); } static void u300_gpio_set(struct gpio_chip *chip, unsigned offset, int value) -- 2.39.5