leds: tlc591xx: Simplify with dev_err_probe()

Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and also it prints the error value.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>

drivers/leds/leds-tlc591xx.c

@@ -213,12 +213,10 @@ tlc591xx_probe(struct i2c_client *client,
 		led->ldev.max_brightness = TLC591XX_MAX_BRIGHTNESS;
 		err = devm_led_classdev_register_ext(dev, &led->ldev,
 						     &init_data);
-		if (err < 0) {
-			if (err != -EPROBE_DEFER)
-				dev_err(dev, "couldn't register LED %s\n",
-					led->ldev.name);
-			return err;
-		}
+		if (err < 0)
+			return dev_err_probe(dev, err,
+					     "couldn't register LED %s\n",
+					     led->ldev.name);
 	}
 	return 0;
 }