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Commit ef289982 authored by Ulf Hansson's avatar Ulf Hansson
Browse files

mmc: mmci: Convert to devm functions 



Converting to devm functions to simplify error handling in ->probe() and
to cleanup ->remove().

Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent d2762090

drivers/mmc/host/mmci.c

+17 −35
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 
#include <linux/init.h>

#include <linux/ioport.h>

#include <linux/device.h>

#include <linux/io.h>

#include <linux/interrupt.h>

#include <linux/kernel.h>

#include <linux/slab.h>
@@ -1456,15 +1457,9 @@ static int mmci_probe(struct amba_device *dev, 
	if (np)

		mmci_dt_populate_generic_pdata(np, plat);



	ret = amba_request_regions(dev, DRIVER_NAME);

	if (ret)

		goto out;



	mmc = mmc_alloc_host(sizeof(struct mmci_host), &dev->dev);

	if (!mmc) {

		ret = -ENOMEM;

		goto rel_regions;

	}

	if (!mmc)

		return -ENOMEM;



	host = mmc_priv(mmc);

	host->mmc = mmc;
@@ -1500,10 +1495,11 @@ static int mmci_probe(struct amba_device *dev, 
		dev_dbg(mmc_dev(mmc), "eventual mclk rate: %u Hz\n",

			host->mclk);

	}



	host->phybase = dev->res.start;

	host->base = ioremap(dev->res.start, resource_size(&dev->res));

	if (!host->base) {

		ret = -ENOMEM;

	host->base = devm_ioremap_resource(&dev->dev, &dev->res);

	if (IS_ERR(host->base)) {

		ret = PTR_ERR(host->base);

		goto clk_disable;

	}
@@ -1592,34 +1588,35 @@ static int mmci_probe(struct amba_device *dev, 


	if (plat->gpio_cd == -EPROBE_DEFER) {

		ret = -EPROBE_DEFER;

		goto err_gpio_cd;

		goto clk_disable;

	}

	if (gpio_is_valid(plat->gpio_cd)) {

		ret = mmc_gpio_request_cd(mmc, plat->gpio_cd, 0);

		if (ret)

			goto err_gpio_cd;

			goto clk_disable;

	}

	if (plat->gpio_wp == -EPROBE_DEFER) {

		ret = -EPROBE_DEFER;

		goto err_gpio_cd;

		goto clk_disable;

	}

	if (gpio_is_valid(plat->gpio_wp)) {

		ret = mmc_gpio_request_ro(mmc, plat->gpio_wp);

		if (ret)

			goto err_gpio_cd;

			goto clk_disable;

	}



	ret = request_irq(dev->irq[0], mmci_irq, IRQF_SHARED, DRIVER_NAME " (cmd)", host);

	ret = devm_request_irq(&dev->dev, dev->irq[0], mmci_irq, IRQF_SHARED,

			DRIVER_NAME " (cmd)", host);

	if (ret)

		goto err_gpio_cd;

		goto clk_disable;



	if (!dev->irq[1])

		host->singleirq = true;

	else {

		ret = request_irq(dev->irq[1], mmci_pio_irq, IRQF_SHARED,

				  DRIVER_NAME " (pio)", host);

		ret = devm_request_irq(&dev->dev, dev->irq[1], mmci_pio_irq,

				IRQF_SHARED, DRIVER_NAME " (pio)", host);

		if (ret)

			goto irq0_free;

			goto clk_disable;

	}



	writel(MCI_IRQENABLE, host->base + MMCIMASK0);
@@ -1641,17 +1638,10 @@ static int mmci_probe(struct amba_device *dev, 


	return 0;



 irq0_free:

	free_irq(dev->irq[0], host);

 err_gpio_cd:

	iounmap(host->base);

 clk_disable:

	clk_disable_unprepare(host->clk);

 host_free:

	mmc_free_host(mmc);

 rel_regions:

	amba_release_regions(dev);

 out:

	return ret;

}
@@ -1677,16 +1667,8 @@ static int mmci_remove(struct amba_device *dev) 
		writel(0, host->base + MMCIDATACTRL);



		mmci_dma_release(host);

		free_irq(dev->irq[0], host);

		if (!host->singleirq)

			free_irq(dev->irq[1], host);



		iounmap(host->base);

		clk_disable_unprepare(host->clk);



		mmc_free_host(mmc);



		amba_release_regions(dev);

	}



	return 0;