kw_gpio: fix error in kw_gpio_direction_input

The function kw_gpio_is_valid returns zero on success, so
adapt the error check accordingly.

Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
cc: Prafulla Wadaskar <prafulla@marvell.com>
cc: Dieter Kiermaier <dk-arm-linux@gmx.de>

diff --git a/drivers/gpio/kw_gpio.c b/drivers/gpio/kw_gpio.c
index 56383c2875aead5630e4cb123fb9c0cb769905d1..2de179e827afcd55a2eeeffa8fd664177dfb9bc4 100644 (file)
--- a/drivers/gpio/kw_gpio.c
+++ b/drivers/gpio/kw_gpio.c
@@ -109,7 +109,7 @@ void kw_gpio_set_valid(unsigned pin, int mode)
  */
 int kw_gpio_direction_input(unsigned pin)
 {
-       if (!kw_gpio_is_valid(pin, GPIO_INPUT_OK))
+       if (kw_gpio_is_valid(pin, GPIO_INPUT_OK) != 0)
                return 1;
 
        /* Configure GPIO direction. */