leds: fix unsigned value overflow in atmel pwm driver

Fix an unsigned value overflow in the error handling code in the
Atmel PWM driver.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>

diff --git a/drivers/leds/leds-atmel-pwm.c b/drivers/leds/leds-atmel-pwm.c
index 28db6c1444ed9f4b64c989fbbbbc05f49ff82f61..52297c3ab246c38a78e3580895c21e1c00d7b6f6 100644 (file)
--- a/drivers/leds/leds-atmel-pwm.c
+++ b/drivers/leds/leds-atmel-pwm.c
@@ -37,7 +37,7 @@ static int __init pwmled_probe(struct platform_device *pdev)
 {
        const struct gpio_led_platform_data     *pdata;
        struct pwmled                           *leds;
-       unsigned                                i;
+       int                                     i;
        int                                     status;
 
        pdata = pdev->dev.platform_data;