leds: lm355x: Return proper error for lm3556_indicator_pattern_store error path

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: G.Shark Jeong <gshark.jeong@gmail.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>

drivers/leds/leds-lm355x.c

@@ -408,7 +408,7 @@ static ssize_t lm3556_indicator_pattern_store(struct device *dev,
 	return size;
 out:
 	dev_err(chip->dev, "%s:i2c access fail to register\n", __func__);
-	return size;
+	return ret;
 }
 
 static DEVICE_ATTR(pattern, 0666, NULL, lm3556_indicator_pattern_store);