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spi: davinci: Use devm_*() functions

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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>
This commit is contained in:
Jingoo Han 2013-12-09 19:12:03 +09:00 committed by Mark Brown
parent a4ee96e488
commit 5b3bb5963f
1 changed files with 11 additions and 30 deletions
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41
drivers/spi/spi-davinci.c
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@ -853,7 +853,7 @@ static int davinci_spi_probe(struct platform_device *pdev)
struct spi_master *master;
struct davinci_spi *dspi;
struct davinci_spi_platform_data *pdata;
struct resource *r, *mem;
struct resource *r;
resource_size_t dma_rx_chan = SPI_NO_RESOURCE;
resource_size_t dma_tx_chan = SPI_NO_RESOURCE;
int i = 0, ret = 0;
@ -894,39 +894,33 @@ static int davinci_spi_probe(struct platform_device *pdev)
dspi->pbase = r->start;
mem = request_mem_region(r->start, resource_size(r), pdev->name);
if (mem == NULL) {
ret = -EBUSY;
dspi->base = devm_ioremap_resource(&pdev->dev, r);
if (IS_ERR(dspi->base)) {
ret = PTR_ERR(dspi->base);
goto free_master;
}
dspi->base = ioremap(r->start, resource_size(r));
if (dspi->base == NULL) {
ret = -ENOMEM;
goto release_region;
}
dspi->irq = platform_get_irq(pdev, 0);
if (dspi->irq <= 0) {
ret = -EINVAL;
goto unmap_io;
goto free_master;
}
ret = request_threaded_irq(dspi->irq, davinci_spi_irq, dummy_thread_fn,
0, dev_name(&pdev->dev), dspi);
ret = devm_request_threaded_irq(&pdev->dev, dspi->irq, davinci_spi_irq,
dummy_thread_fn, 0, dev_name(&pdev->dev), dspi);
if (ret)
goto unmap_io;
goto free_master;
dspi->bitbang.master = master;
if (dspi->bitbang.master == NULL) {
ret = -ENODEV;
goto irq_free;
goto free_master;
}
dspi->clk = clk_get(&pdev->dev, NULL);
dspi->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(dspi->clk)) {
ret = -ENODEV;
goto irq_free;
goto free_master;
}
clk_prepare_enable(dspi->clk);
@ -1015,13 +1009,6 @@ static int davinci_spi_probe(struct platform_device *pdev)
dma_release_channel(dspi->dma_tx);
free_clk:
clk_disable_unprepare(dspi->clk);
clk_put(dspi->clk);
irq_free:
free_irq(dspi->irq, dspi);
unmap_io:
iounmap(dspi->base);
release_region:
release_mem_region(dspi->pbase, resource_size(r));
free_master:
spi_master_put(master);
err:
@ -1041,7 +1028,6 @@ static int davinci_spi_remove(struct platform_device *pdev)
{
struct davinci_spi *dspi;
struct spi_master *master;
struct resource *r;
master = platform_get_drvdata(pdev);
dspi = spi_master_get_devdata(master);
@ -1049,11 +1035,6 @@ static int davinci_spi_remove(struct platform_device *pdev)
spi_bitbang_stop(&dspi->bitbang);
clk_disable_unprepare(dspi->clk);
clk_put(dspi->clk);
free_irq(dspi->irq, dspi);
iounmap(dspi->base);
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(dspi->pbase, resource_size(r));
spi_master_put(master);
return 0;