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[LTSI-3.14,312/894] gpio: rcar: clamp returned value to [0, 1]

Message ID 1409209620-24487-313-git-send-email-horms+renesas@verge.net.au (mailing list archive)
State New, archived
Headers show

Commit Message

Simon Horman Aug. 28, 2014, 6:57 a.m. UTC 
From: Jürg Billeter <j@bitron.ch>

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>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
(cherry picked from commit 7cb5409b10d9f8316ca2539591acb6a5f7fd4139)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 drivers/gpio/gpio-rcar.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

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)