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spi: rcar: Use devm_* managed allocators 

This simplies error and cleanup code paths.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Laurent Pinchart 2013-11-27 01:41:46 +01:00 committed by Mark Brown
parent 5ffbe2d90d
commit 5d79e9ac89
1 changed files with 13 additions and 25 deletions
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38
drivers/spi/spi-rspi.c
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@ -889,9 +889,6 @@ static int rspi_remove(struct platform_device *pdev)
spi_unregister_master(rspi->master);
rspi_release_dma(rspi);
free_irq(platform_get_irq(pdev, 0), rspi);
clk_put(rspi->clk);
iounmap(rspi->addr);
return 0;
}
@ -913,12 +910,6 @@ static int rspi_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "there is no set_config_register\n");
return -ENODEV;
}
/* get base addr */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (unlikely(res == NULL)) {
dev_err(&pdev->dev, "invalid resource\n");
return -EINVAL;
}
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
@ -936,19 +927,20 @@ static int rspi_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, rspi);
rspi->ops = ops;
rspi->master = master;
rspi->addr = ioremap(res->start, resource_size(res));
if (rspi->addr == NULL) {
dev_err(&pdev->dev, "ioremap error.\n");
ret = -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
rspi->addr = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(rspi->addr)) {
ret = PTR_ERR(rspi->addr);
goto error1;
}
snprintf(clk_name, sizeof(clk_name), "%s%d", id_entry->name, pdev->id);
rspi->clk = clk_get(&pdev->dev, clk_name);
rspi->clk = devm_clk_get(&pdev->dev, clk_name);
if (IS_ERR(rspi->clk)) {
dev_err(&pdev->dev, "cannot get clock\n");
ret = PTR_ERR(rspi->clk);
goto error2;
goto error1;
}
clk_enable(rspi->clk);
@ -966,36 +958,32 @@ static int rspi_probe(struct platform_device *pdev)
master->transfer = rspi_transfer;
master->cleanup = rspi_cleanup;
ret = request_irq(irq, rspi_irq, 0, dev_name(&pdev->dev), rspi);
ret = devm_request_irq(&pdev->dev, irq, rspi_irq, 0,
dev_name(&pdev->dev), rspi);
if (ret < 0) {
dev_err(&pdev->dev, "request_irq error\n");
goto error3;
goto error1;
}
rspi->irq = irq;
ret = rspi_request_dma(rspi, pdev);
if (ret < 0) {
dev_err(&pdev->dev, "rspi_request_dma failed.\n");
goto error4;
goto error2;
}
ret = spi_register_master(master);
if (ret < 0) {
dev_err(&pdev->dev, "spi_register_master error.\n");
goto error4;
goto error2;
}
dev_info(&pdev->dev, "probed\n");
return 0;
error4:
rspi_release_dma(rspi);
free_irq(irq, rspi);
error3:
clk_put(rspi->clk);
error2:
iounmap(rspi->addr);
rspi_release_dma(rspi);
error1:
spi_master_put(master);