linux-kernel - [PATCH 36/50] pinctrl: at91-pio4: Use devm_pinctrl

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Message-ID: <1456319775-3216-37-git-send-email-ldewangan@nvidia.com>
Date:	Wed, 24 Feb 2016 18:46:01 +0530
From:	Laxman Dewangan <ldewangan@...dia.com>
To:	<linus.walleij@...aro.org>, <corbet@....net>, <lee@...nel.org>
CC:	<linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-gpio@...r.kernel.org>,
	<linux-rpi-kernel@...ts.infradead.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<bcm-kernel-feedback-list@...adcom.com>,
	<linux-mediatek@...ts.infradead.org>,
	Laxman Dewangan <ldewangan@...dia.com>
Subject: [PATCH 36/50] pinctrl: at91-pio4: Use devm_pinctrl_register() for pinctrl registration

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

Signed-off-by: Laxman Dewangan <ldewangan@...dia.com>
Cc: linux-arm-kernel@...ts.infradead.org
---
 drivers/pinctrl/pinctrl-at91-pio4.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-at91-pio4.c b/drivers/pinctrl/pinctrl-at91-pio4.c
index ee69db6..9d33ef5 100644
--- a/drivers/pinctrl/pinctrl-at91-pio4.c
+++ b/drivers/pinctrl/pinctrl-at91-pio4.c
@@ -1034,18 +1034,19 @@ static int atmel_pinctrl_probe(struct platform_device *pdev)
 		goto clk_prepare_enable_error;
 	}
 
-	atmel_pioctrl->pinctrl_dev = pinctrl_register(&atmel_pinctrl_desc,
-						      &pdev->dev,
-						      atmel_pioctrl);
-	if (!atmel_pioctrl->pinctrl_dev) {
+	atmel_pioctrl->pinctrl_dev = devm_pinctrl_register(&pdev->dev,
+							   &atmel_pinctrl_desc,
+							   atmel_pioctrl);
+	if (IS_ERR(atmel_pioctrl->pinctrl_dev)) {
+		ret = PTR_ERR(atmel_pioctrl->pinctrl_dev);
 		dev_err(dev, "pinctrl registration failed\n");
-		goto pinctrl_register_error;
+		goto clk_unprep;
 	}
 
 	ret = gpiochip_add_data(atmel_pioctrl->gpio_chip, atmel_pioctrl);
 	if (ret) {
 		dev_err(dev, "failed to add gpiochip\n");
-		goto gpiochip_add_error;
+		goto clk_unprep;
 	}
 
 	ret = gpiochip_add_pin_range(atmel_pioctrl->gpio_chip, dev_name(dev),
@@ -1059,15 +1060,15 @@ static int atmel_pinctrl_probe(struct platform_device *pdev)
 
 	return 0;
 
-clk_prepare_enable_error:
-	irq_domain_remove(atmel_pioctrl->irq_domain);
-pinctrl_register_error:
-	clk_disable_unprepare(atmel_pioctrl->clk);
-gpiochip_add_error:
-	pinctrl_unregister(atmel_pioctrl->pinctrl_dev);
 gpiochip_add_pin_range_error:
 	gpiochip_remove(atmel_pioctrl->gpio_chip);
 
+clk_unprep:
+	clk_disable_unprepare(atmel_pioctrl->clk);
+
+clk_prepare_enable_error:
+	irq_domain_remove(atmel_pioctrl->irq_domain);
+
 	return ret;
 }
 
@@ -1077,7 +1078,6 @@ int atmel_pinctrl_remove(struct platform_device *pdev)
 
 	irq_domain_remove(atmel_pioctrl->irq_domain);
 	clk_disable_unprepare(atmel_pioctrl->clk);
-	pinctrl_unregister(atmel_pioctrl->pinctrl_dev);
 	gpiochip_remove(atmel_pioctrl->gpio_chip);
 
 	return 0;
-- 
2.1.4