From 9fa90796244aa6043d59c8e127845ff9e3b01485 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 21 Dec 2015 11:48:48 +0100 Subject: [PATCH] gpio: tz1090: 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. Acked-by: James Hogan Signed-off-by: Linus Walleij --- 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); } /* -- GitLab