led: Return -ENODEV if the LED device cannot be found
We normally use -ENODEV for a missing device, rather than -ENOENT. The
latter is reserved for when we have a device but cannot find something
within it.
Also avoid looking at the root LED device since it is only a container.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/led/led-uclass.c b/drivers/led/led-uclass.c
index a80ae93..784ac87 100644
--- a/drivers/led/led-uclass.c
+++ b/drivers/led/led-uclass.c
@@ -24,11 +24,12 @@
uclass_foreach_dev(dev, uc) {
struct led_uclass_plat *uc_plat = dev_get_uclass_platdata(dev);
- if (!strcmp(label, uc_plat->label))
+ /* Ignore the top-level LED node */
+ if (uc_plat->label && !strcmp(label, uc_plat->label))
return uclass_get_device_tail(dev, 0, devp);
}
- return -ENOENT;
+ return -ENODEV;
}
int led_set_on(struct udevice *dev, int on)