gpio: pca953x: 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>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

drivers/gpio/gpio-pca953x.c

@@ -1000,12 +1000,9 @@ static int pca953x_probe(struct i2c_client *client,
 	chip->client = client;
 
 	reg = devm_regulator_get(&client->dev, "vcc");
-	if (IS_ERR(reg)) {
-		ret = PTR_ERR(reg);
-		if (ret != -EPROBE_DEFER)
-			dev_err(&client->dev, "reg get err: %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(reg))
+		return dev_err_probe(&client->dev, PTR_ERR(reg), "reg get err\n");
+
 	ret = regulator_enable(reg);
 	if (ret) {
 		dev_err(&client->dev, "reg en err: %d\n", ret);