[PATCH] gpio: rcar: clamp returned value to [0,1]

[PATCH] gpio: rcar: clamp returned value to [0,1]

[Jürg Billeter]

While it will be clamped to bool by gpiolib, let's make this sane
in the driver as well.

Signed-off-by: Jürg Billeter <j@bitron.ch>
---
 drivers/gpio/gpio-rcar.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index 0c9f803..7c62121 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -240,9 +240,9 @@ static int gpio_rcar_get(struct gpio_chip *chip, unsigned offset)
 	/* testing on r8a7790 shows that INDT does not show correct pin state
 	 * when configured as output, so use OUTDT in case of output pins */
 	if (gpio_rcar_read(gpio_to_priv(chip), INOUTSEL) & bit)
-		return (int)(gpio_rcar_read(gpio_to_priv(chip), OUTDT) & bit);
+		return !!(gpio_rcar_read(gpio_to_priv(chip), OUTDT) & bit);
 	else
-		return (int)(gpio_rcar_read(gpio_to_priv(chip), INDT) & bit);
+		return !!(gpio_rcar_read(gpio_to_priv(chip), INDT) & bit);
 }
 
 static void gpio_rcar_set(struct gpio_chip *chip, unsigned offset, int value)
-- 
2.0.0

Re: [PATCH] gpio: rcar: clamp returned value to [0,1]

[Linus Walleij]

On Tue, Jun 24, 2014 at 4:19 AM, Jürg Billeter <j@bitron.ch> wrote:

> While it will be clamped to bool by gpiolib, let's make this sane
> in the driver as well.
>
> Signed-off-by: Jürg Billeter <j@bitron.ch>

Patch obviously correct to applied.

Yours,
Linus Walleij