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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>
This commit is contained in:
Jingoo Han 2013-12-17 15:48:19 +09:00 committed by Wolfram Sang
parent fa96faaa11
commit a0682a3158
1 changed files with 7 additions and 18 deletions
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25
drivers/i2c/busses/i2c-gpio.c
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@ -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;
}