gpio: zynq: Do not check unsigned type that is >= 0

There is no reason to check that unsigned type that is >= 0.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/drivers/gpio/zynq_gpio.c b/drivers/gpio/zynq_gpio.c
index 96632946853b6c491cb4176f52c28099126b0f98..442ba196cae000c7f8e82fe9933aa15a918f225c 100644 (file)
--- a/drivers/gpio/zynq_gpio.c
+++ b/drivers/gpio/zynq_gpio.c
@@ -188,7 +188,7 @@ static int gpio_is_valid(unsigned gpio, struct udevice *dev)
 {
        struct zynq_gpio_privdata *priv = dev_get_priv(dev);
 
-       return (gpio >= 0) && (gpio < priv->p_data->ngpio);
+       return gpio < priv->p_data->ngpio;
 }
 
 static int check_gpio(unsigned gpio, struct udevice *dev)