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Commit d27f25c9 authored by Markus Pargmann's avatar Markus Pargmann Committed by Greg Kroah-Hartman
Browse files

w1-gpio: Use devm_* functions 



Signed-off-by: default avatarMarkus Pargmann <mpa@pengutronix.de>
Acked-by: default avatarEvgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 7cf1a122

drivers/w1/masters/w1-gpio.c

+9 −19
Original line number Diff line number Diff line
@@ -99,25 +99,27 @@ static int w1_gpio_probe(struct platform_device *pdev) 
		return -ENXIO;

	}



	master = kzalloc(sizeof(struct w1_bus_master), GFP_KERNEL);

	master = devm_kzalloc(&pdev->dev, sizeof(struct w1_bus_master),

			GFP_KERNEL);

	if (!master) {

		dev_err(&pdev->dev, "Out of memory\n");

		return -ENOMEM;

	}



	err = gpio_request(pdata->pin, "w1");

	err = devm_gpio_request(&pdev->dev, pdata->pin, "w1");

	if (err) {

		dev_err(&pdev->dev, "gpio_request (pin) failed\n");

		goto free_master;

		return err;

	}



	if (gpio_is_valid(pdata->ext_pullup_enable_pin)) {

		err = gpio_request_one(pdata->ext_pullup_enable_pin,

				       GPIOF_INIT_LOW, "w1 pullup");

		err = devm_gpio_request_one(&pdev->dev,

				pdata->ext_pullup_enable_pin, GPIOF_INIT_LOW,

				"w1 pullup");

		if (err < 0) {

			dev_err(&pdev->dev, "gpio_request_one "

					"(ext_pullup_enable_pin) failed\n");

			goto free_gpio;

			return err;

		}

	}
@@ -135,7 +137,7 @@ static int w1_gpio_probe(struct platform_device *pdev) 
	err = w1_add_master_device(master);

	if (err) {

		dev_err(&pdev->dev, "w1_add_master device failed\n");

		goto free_gpio_ext_pu;

		return err;

	}



	if (pdata->enable_external_pullup)
@@ -147,16 +149,6 @@ static int w1_gpio_probe(struct platform_device *pdev) 
	platform_set_drvdata(pdev, master);



	return 0;



 free_gpio_ext_pu:

	if (gpio_is_valid(pdata->ext_pullup_enable_pin))

		gpio_free(pdata->ext_pullup_enable_pin);

 free_gpio:

	gpio_free(pdata->pin);

 free_master:

	kfree(master);



	return err;

}



static int w1_gpio_remove(struct platform_device *pdev)
@@ -171,8 +163,6 @@ static int w1_gpio_remove(struct platform_device *pdev) 
		gpio_set_value(pdata->ext_pullup_enable_pin, 0);



	w1_remove_master_device(master);

	gpio_free(pdata->pin);

	kfree(master);



	return 0;

}