[PATCH V2 1/2] leds: gpio: Add kernel log if devm_fwnode_gpiod_get fails

[Stefan Wahren]

In case leds-gpio fails to get the GPIO from the DT (e.g. the GPIO is
already requested) the driver doesn't provide any helpful error log:

    leds-gpio: probe of leds failed with error -16

So add a new error log in case devm_fwnode_gpiod_get() fails.

Signed-off-by: Stefan Wahren <wahrenst at gmx.net>
---
 drivers/leds/leds-gpio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index 710c319ad312..0159cedffa9e 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -172,6 +172,8 @@ static struct gpio_leds_priv *gpio_leds_create(struct device *dev)
 		led.gpiod = devm_fwnode_gpiod_get(dev, child, NULL, GPIOD_ASIS,
 						  NULL);
 		if (IS_ERR(led.gpiod)) {
+			dev_err_probe(dev, PTR_ERR(led.gpiod), "Failed to get gpio '%pfw'\n",
+				      child);
 			fwnode_handle_put(child);
 			return ERR_CAST(led.gpiod);
 		}
--
2.34.1