Add a check for the gpio_request() function return value and do not try
to configure the GPIO if the gpio_request() call fails.
Also, print an error message indicating the gpio_request() has failed.
Signed-off-by: Igor Grinberg <grinb...@compulab.co.il>
---
drivers/misc/gpio_led.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/misc/gpio_led.c b/drivers/misc/gpio_led.c
index 3fedddc..de20419 100644
--- a/drivers/misc/gpio_led.c
+++ b/drivers/misc/gpio_led.c
@@ -11,7 +11,11 @@
void __led_init(led_id_t mask, int state)
{
- gpio_request(mask, "gpio_led");
+ if (gpio_request(mask, "gpio_led") != 0) {
+ printf("%s: failed requesting GPIO%lu!\n", __func__, mask);
+ return;
+ }
+
gpio_direction_output(mask, state == STATUS_LED_ON);
}
--
1.8.1.5
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
