ASoC: cs35l33: Fix testing return value of devm_gpiod_get_optional

devm_gpiod_get_optional() returns NULL when the gpio is not assigned.
So the if (PTR_ERR(cs35l33->reset_gpio) == -ENOENT) test is always false.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Paul Handrigan <Paul.Handrigan@cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/cs35l33.c

@@ -1176,11 +1176,7 @@ static int cs35l33_i2c_probe(struct i2c_client *i2c_client,
 	/* We could issue !RST or skip it based on AMP topology */
 	cs35l33->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev,
 			"reset-gpios", GPIOD_OUT_HIGH);
-
-	if (PTR_ERR(cs35l33->reset_gpio) == -ENOENT) {
-		dev_warn(&i2c_client->dev,
-			"%s WARNING: No reset gpio assigned\n", __func__);
-	} else if (IS_ERR(cs35l33->reset_gpio)) {
+	if (IS_ERR(cs35l33->reset_gpio)) {
 		dev_err(&i2c_client->dev, "%s ERROR: Can't get reset GPIO\n",
 			__func__);
 		return PTR_ERR(cs35l33->reset_gpio);