linux-kernel - [PATCH 13/50] pinctrl: mtk-common: Use devm_pinctrl

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Message-ID: <1456319775-3216-14-git-send-email-ldewangan@nvidia.com>
Date:	Wed, 24 Feb 2016 18:45:38 +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>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Hongzhou Yang <hongzhou.yang@...iatek.com>,
	Yingjoe Chen <yingjoe.chen@...iatek.com>
Subject: [PATCH 13/50] pinctrl: mtk-common: Use devm_pinctrl_register() for pinctrl registration

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

Signed-off-by: Laxman Dewangan <ldewangan@...dia.com>
Cc: Matthias Brugger <matthias.bgg@...il.com>
Cc: Hongzhou Yang <hongzhou.yang@...iatek.com>
Cc: Yingjoe Chen <yingjoe.chen@...iatek.com>
---
 drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index ddc9217..194413d 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -1390,17 +1390,16 @@ int mtk_pctrl_init(struct platform_device *pdev,
 	pctl->pctl_desc.pmxops = &mtk_pmx_ops;
 	pctl->dev = &pdev->dev;
 
-	pctl->pctl_dev = pinctrl_register(&pctl->pctl_desc, &pdev->dev, pctl);
+	pctl->pctl_dev = devm_pinctrl_register(&pdev->dev, &pctl->pctl_desc,
+					       pctl);
 	if (IS_ERR(pctl->pctl_dev)) {
 		dev_err(&pdev->dev, "couldn't register pinctrl driver\n");
 		return PTR_ERR(pctl->pctl_dev);
 	}
 
 	pctl->chip = devm_kzalloc(&pdev->dev, sizeof(*pctl->chip), GFP_KERNEL);
-	if (!pctl->chip) {
-		ret = -ENOMEM;
-		goto pctrl_error;
-	}
+	if (!pctl->chip)
+		return -ENOMEM;
 
 	*pctl->chip = mtk_gpio_chip;
 	pctl->chip->ngpio = pctl->devdata->npins;
@@ -1409,10 +1408,8 @@ int mtk_pctrl_init(struct platform_device *pdev,
 	pctl->chip->base = -1;
 
 	ret = gpiochip_add_data(pctl->chip, pctl);
-	if (ret) {
-		ret = -EINVAL;
-		goto pctrl_error;
-	}
+	if (ret)
+		return -EINVAL;
 
 	/* Register the GPIO to pin mappings. */
 	ret = gpiochip_add_pin_range(pctl->chip, dev_name(&pdev->dev),
@@ -1490,8 +1487,6 @@ int mtk_pctrl_init(struct platform_device *pdev,
 
 chip_error:
 	gpiochip_remove(pctl->chip);
-pctrl_error:
-	pinctrl_unregister(pctl->pctl_dev);
 	return ret;
 }
 
-- 
2.1.4