From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Dec 2013 06:48:19 +0000 (+0900)
Subject: i2c: gpio: Use devm_gpio_request()
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a0682a31588990cb6f870f1a48cf019525605625;p=linux-beck.git

i2c: gpio: Use devm_gpio_request()

Use devm_gpio_request() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Violeta Menendez <violeta.menendez@codethink.co.uk>
Reviewed-by: Ian Molton <ian.molton@codethink.co.uk>
Tested-by: Violeta Menendez <violeta.menendez@codethink.co.uk>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---

diff --git a/drivers/i2c/busses/i2c-gpio.c b/drivers/i2c/busses/i2c-gpio.c
index 02d2d4abb9dd..71a45b210a24 100644
--- a/drivers/i2c/busses/i2c-gpio.c
+++ b/drivers/i2c/busses/i2c-gpio.c
@@ -147,24 +147,22 @@ static int i2c_gpio_probe(struct platform_device *pdev)
 		scl_pin = pdata->scl_pin;
 	}
 
-	ret = gpio_request(sda_pin, "sda");
+	ret = devm_gpio_request(&pdev->dev, sda_pin, "sda");
 	if (ret) {
 		if (ret == -EINVAL)
 			ret = -EPROBE_DEFER;	/* Try again later */
-		goto err_request_sda;
+		return ret;
 	}
-	ret = gpio_request(scl_pin, "scl");
+	ret = devm_gpio_request(&pdev->dev, scl_pin, "scl");
 	if (ret) {
 		if (ret == -EINVAL)
 			ret = -EPROBE_DEFER;	/* Try again later */
-		goto err_request_scl;
+		return ret;
 	}
 
 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
-	if (!priv) {
-		ret = -ENOMEM;
-		goto err_add_bus;
-	}
+	if (!priv)
+		return -ENOMEM;
 	adap = &priv->adap;
 	bit_data = &priv->bit_data;
 	pdata = &priv->pdata;
@@ -225,7 +223,7 @@ static int i2c_gpio_probe(struct platform_device *pdev)
 	adap->nr = pdev->id;
 	ret = i2c_bit_add_numbered_bus(adap);
 	if (ret)
-		goto err_add_bus;
+		return ret;
 
 	platform_set_drvdata(pdev, priv);
 
@@ -235,13 +233,6 @@ static int i2c_gpio_probe(struct platform_device *pdev)
 		 ? ", no clock stretching" : "");
 
 	return 0;
-
-err_add_bus:
-	gpio_free(scl_pin);
-err_request_scl:
-	gpio_free(sda_pin);
-err_request_sda:
-	return ret;
 }
 
 static int i2c_gpio_remove(struct platform_device *pdev)
@@ -255,8 +246,6 @@ static int i2c_gpio_remove(struct platform_device *pdev)
 	pdata = &priv->pdata;
 
 	i2c_del_adapter(adap);
-	gpio_free(pdata->scl_pin);
-	gpio_free(pdata->sda_pin);
 
 	return 0;
 }