diff options
author | Jingoo Han <jg1.han@samsung.com> | 2013-12-09 14:19:13 +0400 |
---|---|---|
committer | Mark Brown <broonie@linaro.org> | 2013-12-18 02:54:51 +0400 |
commit | c9f722e879953f74d3e09023ba339c98d68f1998 (patch) | |
tree | 1fb3959965a3ad299942f0798234fcd5b4f669ee /drivers/spi/spi-s3c24xx.c | |
parent | 6ce4eac1f600b34f2f7f58f9cd8f0503d79e42ae (diff) | |
download | linux-c9f722e879953f74d3e09023ba339c98d68f1998.tar.xz |
spi: s3c24xx: Use devm_*() functions
Use devm_*() functions to make cleanup paths simpler.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/spi/spi-s3c24xx.c')
-rw-r--r-- | drivers/spi/spi-s3c24xx.c | 67 |
1 files changed, 14 insertions, 53 deletions
diff --git a/drivers/spi/spi-s3c24xx.c b/drivers/spi/spi-s3c24xx.c index 0dc32a11bd3c..ebf80bbc93b3 100644 --- a/drivers/spi/spi-s3c24xx.c +++ b/drivers/spi/spi-s3c24xx.c @@ -78,7 +78,6 @@ struct s3c24xx_spi { unsigned char *rx; struct clk *clk; - struct resource *ioarea; struct spi_master *master; struct spi_device *curdev; struct device *dev; @@ -517,8 +516,7 @@ static int s3c24xx_spi_probe(struct platform_device *pdev) master = spi_alloc_master(&pdev->dev, sizeof(struct s3c24xx_spi)); if (master == NULL) { dev_err(&pdev->dev, "No memory for spi_master\n"); - err = -ENOMEM; - goto err_nomem; + return -ENOMEM; } hw = spi_master_get_devdata(master); @@ -567,43 +565,34 @@ static int s3c24xx_spi_probe(struct platform_device *pdev) if (res == NULL) { dev_err(&pdev->dev, "Cannot get IORESOURCE_MEM\n"); err = -ENOENT; - goto err_no_iores; - } - - hw->ioarea = request_mem_region(res->start, resource_size(res), - pdev->name); - - if (hw->ioarea == NULL) { - dev_err(&pdev->dev, "Cannot reserve region\n"); - err = -ENXIO; - goto err_no_iores; + goto err_no_pdata; } - hw->regs = ioremap(res->start, resource_size(res)); - if (hw->regs == NULL) { - dev_err(&pdev->dev, "Cannot map IO\n"); - err = -ENXIO; - goto err_no_iomap; + hw->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(hw->regs)) { + err = PTR_ERR(hw->regs); + goto err_no_pdata; } hw->irq = platform_get_irq(pdev, 0); if (hw->irq < 0) { dev_err(&pdev->dev, "No IRQ specified\n"); err = -ENOENT; - goto err_no_irq; + goto err_no_pdata; } - err = request_irq(hw->irq, s3c24xx_spi_irq, 0, pdev->name, hw); + err = devm_request_irq(&pdev->dev, hw->irq, s3c24xx_spi_irq, 0, + pdev->name, hw); if (err) { dev_err(&pdev->dev, "Cannot claim IRQ\n"); - goto err_no_irq; + goto err_no_pdata; } - hw->clk = clk_get(&pdev->dev, "spi"); + hw->clk = devm_clk_get(&pdev->dev, "spi"); if (IS_ERR(hw->clk)) { dev_err(&pdev->dev, "No clock for device\n"); err = PTR_ERR(hw->clk); - goto err_no_clk; + goto err_no_pdata; } /* setup any gpio we can */ @@ -615,7 +604,8 @@ static int s3c24xx_spi_probe(struct platform_device *pdev) goto err_register; } - err = gpio_request(pdata->pin_cs, dev_name(&pdev->dev)); + err = devm_gpio_request(&pdev->dev, pdata->pin_cs, + dev_name(&pdev->dev)); if (err) { dev_err(&pdev->dev, "Failed to get gpio for cs\n"); goto err_register; @@ -639,27 +629,10 @@ static int s3c24xx_spi_probe(struct platform_device *pdev) return 0; err_register: - if (hw->set_cs == s3c24xx_spi_gpiocs) - gpio_free(pdata->pin_cs); - clk_disable(hw->clk); - clk_put(hw->clk); - err_no_clk: - free_irq(hw->irq, hw); - - err_no_irq: - iounmap(hw->regs); - - err_no_iomap: - release_resource(hw->ioarea); - kfree(hw->ioarea); - - err_no_iores: err_no_pdata: spi_master_put(hw->master); - - err_nomem: return err; } @@ -668,19 +641,7 @@ static int s3c24xx_spi_remove(struct platform_device *dev) struct s3c24xx_spi *hw = platform_get_drvdata(dev); spi_bitbang_stop(&hw->bitbang); - clk_disable(hw->clk); - clk_put(hw->clk); - - free_irq(hw->irq, hw); - iounmap(hw->regs); - - if (hw->set_cs == s3c24xx_spi_gpiocs) - gpio_free(hw->pdata->pin_cs); - - release_resource(hw->ioarea); - kfree(hw->ioarea); - spi_master_put(hw->master); return 0; } |