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Commit 26c5f7d9 authored by Jingoo Han's avatar Jingoo Han Committed by Linus Torvalds
Browse files

rtc: rtc-bq4802: use devm_*() functions 



Use devm_*() functions to make cleanup paths simpler.

Signed-off-by: default avatarJingoo Han <jg1.han@samsung.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 87e7d520

drivers/rtc/rtc-bq4802.c

+8 −21
Original line number Diff line number Diff line
@@ -142,7 +142,7 @@ static const struct rtc_class_ops bq4802_ops = { 


static int bq4802_probe(struct platform_device *pdev)

{

	struct bq4802 *p = kzalloc(sizeof(*p), GFP_KERNEL);

	struct bq4802 *p = devm_kzalloc(&pdev->dev, sizeof(*p), GFP_KERNEL);

	int err = -ENOMEM;



	if (!p)
@@ -155,54 +155,41 @@ static int bq4802_probe(struct platform_device *pdev) 
		p->r = platform_get_resource(pdev, IORESOURCE_IO, 0);

		err = -EINVAL;

		if (!p->r)

			goto out_free;

			goto out;

	}

	if (p->r->flags & IORESOURCE_IO) {

		p->ioport = p->r->start;

		p->read = bq4802_read_io;

		p->write = bq4802_write_io;

	} else if (p->r->flags & IORESOURCE_MEM) {

		p->regs = ioremap(p->r->start, resource_size(p->r));

		p->regs = devm_ioremap(&pdev->dev, p->r->start,

					resource_size(p->r));

		p->read = bq4802_read_mem;

		p->write = bq4802_write_mem;

	} else {

		err = -EINVAL;

		goto out_free;

		goto out;

	}



	platform_set_drvdata(pdev, p);



	p->rtc = rtc_device_register("bq4802", &pdev->dev,

	p->rtc = devm_rtc_device_register(&pdev->dev, "bq4802",

					&bq4802_ops, THIS_MODULE);

	if (IS_ERR(p->rtc)) {

		err = PTR_ERR(p->rtc);

		goto out_iounmap;

		goto out;

	}



	err = 0;

out:

	return err;



out_iounmap:

	if (p->r->flags & IORESOURCE_MEM)

		iounmap(p->regs);

out_free:

	kfree(p);

	goto out;

}



static int bq4802_remove(struct platform_device *pdev)

{

	struct bq4802 *p = platform_get_drvdata(pdev);



	rtc_device_unregister(p->rtc);

	if (p->r->flags & IORESOURCE_MEM)

		iounmap(p->regs);



	platform_set_drvdata(pdev, NULL);



	kfree(p);



	return 0;

}