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Commit 174f2366 authored by Axel Lin's avatar Axel Lin Committed by Wolfram Sang
Browse files

i2c: au1550: Convert to devm_kzalloc and devm_ioremap_resource 



Use devm_* APIs to simplify the code.

Signed-off-by: default avatarAxel Lin <axel.lin@ingics.com>
Tested-by: default avatarManuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent 9e685c84

drivers/i2c/busses/i2c-au1550.c

+13 −39
Original line number Diff line number Diff line
@@ -48,7 +48,6 @@ struct i2c_au1550_data { 
	void __iomem *psc_base;

	int	xfer_timeout;

	struct i2c_adapter adap;

	struct resource *ioarea;

};



static inline void WR(struct i2c_au1550_data *a, int r, unsigned long v)
@@ -315,30 +314,16 @@ i2c_au1550_probe(struct platform_device *pdev) 
	struct resource *r;

	int ret;



	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!r) {

		ret = -ENODEV;

		goto out;

	}



	priv = kzalloc(sizeof(struct i2c_au1550_data), GFP_KERNEL);

	if (!priv) {

		ret = -ENOMEM;

		goto out;

	}

	priv = devm_kzalloc(&pdev->dev, sizeof(struct i2c_au1550_data),

			    GFP_KERNEL);

	if (!priv)

		return -ENOMEM;



	priv->ioarea = request_mem_region(r->start, resource_size(r),

					  pdev->name);

	if (!priv->ioarea) {

		ret = -EBUSY;

		goto out_mem;

	}

	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	priv->psc_base = devm_ioremap_resource(&pdev->dev, r);

	if (IS_ERR(priv->psc_base))

		return PTR_ERR(priv->psc_base);



	priv->psc_base = ioremap(r->start, resource_size(r));

	if (!priv->psc_base) {

		ret = -EIO;

		goto out_map;

	}

	priv->xfer_timeout = 200;



	priv->adap.nr = pdev->id;
@@ -351,32 +336,21 @@ i2c_au1550_probe(struct platform_device *pdev) 
	i2c_au1550_setup(priv);



	ret = i2c_add_numbered_adapter(&priv->adap);

	if (ret == 0) {

		platform_set_drvdata(pdev, priv);

		return 0;

	}



	if (ret) {

		i2c_au1550_disable(priv);

	iounmap(priv->psc_base);

out_map:

	release_resource(priv->ioarea);

	kfree(priv->ioarea);

out_mem:

	kfree(priv);

out:

		return ret;

	}



	platform_set_drvdata(pdev, priv);

	return 0;

}



static int i2c_au1550_remove(struct platform_device *pdev)

{

	struct i2c_au1550_data *priv = platform_get_drvdata(pdev);



	i2c_del_adapter(&priv->adap);

	i2c_au1550_disable(priv);

	iounmap(priv->psc_base);

	release_resource(priv->ioarea);

	kfree(priv->ioarea);

	kfree(priv);

	return 0;

}