pinctrl: amd: Use devm_pinctrl_register() for pinctrl registration

Use devm_pinctrl_register() for pin control registration and clean
error path.

Signed-off-by: Laxman Dewangan <[e-mail]>
Signed-off-by: Linus Walleij <[e-mail]>

drivers/pinctrl/pinctrl-amd.c

···
 	gpio_dev->ngroups = ARRAY_SIZE(kerncz_groups);
 
 	amd_pinctrl_desc.name = dev_name(&pdev->dev);
-	gpio_dev->pctrl = pinctrl_register(&amd_pinctrl_desc,
-					&pdev->dev, gpio_dev);
+	gpio_dev->pctrl = devm_pinctrl_register(&pdev->dev, &amd_pinctrl_desc,
+						gpio_dev);
 	if (IS_ERR(gpio_dev->pctrl)) {
 		dev_err(&pdev->dev, "Couldn't register pinctrl driver\n");
 		return PTR_ERR(gpio_dev->pctrl);
···
 
 	ret = gpiochip_add_data(&gpio_dev->gc, gpio_dev);
 	if (ret)
-		goto out1;
+		return ret;
 
 	ret = gpiochip_add_pin_range(&gpio_dev->gc, dev_name(&pdev->dev),
 				0, 0, TOTAL_NUMBER_OF_PINS);
···
 out2:
 	gpiochip_remove(&gpio_dev->gc);
 
-out1:
-	pinctrl_unregister(gpio_dev->pctrl);
 	return ret;
 }
 
···
 	gpio_dev = platform_get_drvdata(pdev);
 
 	gpiochip_remove(&gpio_dev->gc);
-	pinctrl_unregister(gpio_dev->pctrl);
 
 	return 0;
 }