diff options
| author | Jingoo Han <jg1.han@samsung.com> | 2014-01-03 11:16:28 +0900 |
|---|---|---|
| committer | Brian Norris <computersforpeace@gmail.com> | 2014-01-07 10:07:33 -0800 |
| commit | ffdac7cd31d04f81a09f517f37c371c5f978efec (patch) | |
| tree | 8b39c1e2b42d7e767b493b918974824d3a9b9482 /drivers/mtd | |
| parent | ed0b272ed25fb947af1cc71973b986be6dd19d04 (diff) | |
mtd: plat_nand: Use devm_*() functions
Use devm_*() functions to make cleanup paths simpler.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/plat_nand.c | 31 |
1 files changed, 6 insertions, 25 deletions
diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c index cad4cdc9df39..d00e3a7c6bd8 100644 --- a/drivers/mtd/nand/plat_nand.c +++ b/drivers/mtd/nand/plat_nand.c @@ -9,6 +9,7 @@ * */ +#include <linux/err.h> #include <linux/io.h> #include <linux/module.h> #include <linux/platform_device.h> @@ -52,25 +53,16 @@ static int plat_nand_probe(struct platform_device *pdev) return -ENXIO; /* Allocate memory for the device structure (and zero it) */ - data = kzalloc(sizeof(struct plat_nand_data), GFP_KERNEL); + data = devm_kzalloc(&pdev->dev, sizeof(struct plat_nand_data), + GFP_KERNEL); if (!data) { dev_err(&pdev->dev, "failed to allocate device structure.\n"); return -ENOMEM; } - if (!request_mem_region(res->start, resource_size(res), - dev_name(&pdev->dev))) { - dev_err(&pdev->dev, "request_mem_region failed\n"); - err = -EBUSY; - goto out_free; - } - - data->io_base = ioremap(res->start, resource_size(res)); - if (data->io_base == NULL) { - dev_err(&pdev->dev, "ioremap failed\n"); - err = -EIO; - goto out_release_io; - } + data->io_base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(data->io_base)) + return PTR_ERR(data->io_base); data->chip.priv = &data; data->mtd.priv = &data->chip; @@ -122,11 +114,6 @@ static int plat_nand_probe(struct platform_device *pdev) out: if (pdata->ctrl.remove) pdata->ctrl.remove(pdev); - iounmap(data->io_base); -out_release_io: - release_mem_region(res->start, resource_size(res)); -out_free: - kfree(data); return err; } @@ -137,16 +124,10 @@ static int plat_nand_remove(struct platform_device *pdev) { struct plat_nand_data *data = platform_get_drvdata(pdev); struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev); - struct resource *res; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); nand_release(&data->mtd); if (pdata->ctrl.remove) pdata->ctrl.remove(pdev); - iounmap(data->io_base); - release_mem_region(res->start, resource_size(res)); - kfree(data); return 0; } |