regulator: uniphier: Fix probe error handling

Ensure unwind all resources if probe fails.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/uniphier-regulator.c

@@ -87,8 +87,10 @@ static int uniphier_regulator_probe(struct platform_device *pdev)
 	}
 
 	regmap = devm_regmap_init_mmio(dev, base, priv->data->regconf);
-	if (IS_ERR(regmap))
-		return PTR_ERR(regmap);
+	if (IS_ERR(regmap)) {
+		ret = PTR_ERR(regmap);
+		goto out_rst_assert;
+	}
 
 	config.dev = dev;
 	config.driver_data = priv;