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/include/led.h b/include/led.h
index 8925d75..b929d0c 100644
--- a/include/led.h
+++ b/include/led.h
@@ -35,7 +35,7 @@
*
* @label: LED label to look up
* @devp: Returns the associated device, if found
- * @return 0 if found, -ve on error
+ * @return 0 if found, -ENODEV if not found, other -ve on error
*/
int led_get_by_label(const char *label, struct udevice **devp);