[PATCH 4.4 44/91] leds: leds-gpio: Fix return value check in create_gpio_led()

Greg Kroah-Hartman
2018-12-11T15:46:30Z

From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>

commit 2d88a331e48095cf60ad9bdf3177bd401bf99727 upstream.

In case of error, the function gpio_to_desc() returns NULL
pointer not ERR_PTR(). The IS_ERR() test in the return value
check should be replaced with NULL test.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/leds/leds-gpio.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -118,8 +118,8 @@ static int create_gpio_led(const struct
return ret;

led_dat->gpiod = gpio_to_desc(template->gpio);
- if (IS_ERR(led_dat->gpiod))
- return PTR_ERR(led_dat->gpiod);
+ if (!led_dat->gpiod)
+ return -EINVAL;
}

led_dat->cdev.name = template->name;