gpio: msc313: Code clean ups

- Remove the unneeded assignment of ret before returning it.
- Remove an unneeded blank line

Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>

drivers/gpio/gpio-msc313.c

@@ -344,7 +344,6 @@ static int msc313_gpio_probe(struct platform_device *pdev)
 	struct irq_domain *parent_domain;
 	struct device_node *parent_node;
 	struct device *dev = &pdev->dev;
-	int ret;
 
 	match_data = of_device_get_match_data(dev);
 	if (!match_data)
@@ -399,8 +398,7 @@ static int msc313_gpio_probe(struct platform_device *pdev)
 	gpioirqchip->handler = handle_bad_irq;
 	gpioirqchip->default_type = IRQ_TYPE_NONE;
 
-	ret = devm_gpiochip_add_data(dev, gpiochip, gpio);
-	return ret;
+	return devm_gpiochip_add_data(dev, gpiochip, gpio);
 }
 
 static int msc313_gpio_remove(struct platform_device *pdev)
@@ -456,5 +454,4 @@ static struct platform_driver msc313_gpio_driver = {
 	.probe = msc313_gpio_probe,
 	.remove = msc313_gpio_remove,
 };
-
 builtin_platform_driver(msc313_gpio_driver);