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thermal: exynos: Use devm_* functions

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devm_* functions are used to replace kzalloc, request_mem_region, ioremap
and request_irq functions in probe call. With the usage of devm_* functions
explicit freeing and unmapping is not required.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Signed-off-by: Amit Daniel Kachhap <amit.kachhap@linaro.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
This commit is contained in:
Amit Daniel Kachhap 2012-08-16 05:41:45 -06:00 committed by Zhang Rui
parent 17be868e04
commit 79e093c3fe
1 changed files with 9 additions and 36 deletions
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45
drivers/thermal/exynos_thermal.c
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@ -842,7 +842,8 @@ static int __devinit exynos_tmu_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "No platform init data supplied.\n");
return -ENODEV;
}
data = kzalloc(sizeof(struct exynos_tmu_data), GFP_KERNEL);
data = devm_kzalloc(&pdev->dev, sizeof(struct exynos_tmu_data),
GFP_KERNEL);
if (!data) {
dev_err(&pdev->dev, "Failed to allocate driver structure\n");
return -ENOMEM;
@ -850,47 +851,35 @@ static int __devinit exynos_tmu_probe(struct platform_device *pdev)
data->irq = platform_get_irq(pdev, 0);
if (data->irq < 0) {
ret = data->irq;
dev_err(&pdev->dev, "Failed to get platform irq\n");
goto err_free;
return data->irq;
}
INIT_WORK(&data->irq_work, exynos_tmu_work);
data->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!data->mem) {
ret = -ENOENT;
dev_err(&pdev->dev, "Failed to get platform resource\n");
goto err_free;
return -ENOENT;
}
data->mem = request_mem_region(data->mem->start,
resource_size(data->mem), pdev->name);
if (!data->mem) {
ret = -ENODEV;
dev_err(&pdev->dev, "Failed to request memory region\n");
goto err_free;
}
data->base = ioremap(data->mem->start, resource_size(data->mem));
data->base = devm_request_and_ioremap(&pdev->dev, data->mem);
if (!data->base) {
ret = -ENODEV;
dev_err(&pdev->dev, "Failed to ioremap memory\n");
goto err_mem_region;
return -ENODEV;
}
ret = request_irq(data->irq, exynos_tmu_irq,
ret = devm_request_irq(&pdev->dev, data->irq, exynos_tmu_irq,
IRQF_TRIGGER_RISING, "exynos-tmu", data);
if (ret) {
dev_err(&pdev->dev, "Failed to request irq: %d\n", data->irq);
goto err_io_remap;
return ret;
}
data->clk = clk_get(NULL, "tmu_apbif");
if (IS_ERR(data->clk)) {
ret = PTR_ERR(data->clk);
dev_err(&pdev->dev, "Failed to get clock\n");
goto err_irq;
return PTR_ERR(data->clk);
}
if (pdata->type == SOC_ARCH_EXYNOS ||
@ -942,15 +931,6 @@ static int __devinit exynos_tmu_probe(struct platform_device *pdev)
err_clk:
platform_set_drvdata(pdev, NULL);
clk_put(data->clk);
err_irq:
free_irq(data->irq, data);
err_io_remap:
iounmap(data->base);
err_mem_region:
release_mem_region(data->mem->start, resource_size(data->mem));
err_free:
kfree(data);
return ret;
}
@ -964,15 +944,8 @@ static int __devexit exynos_tmu_remove(struct platform_device *pdev)
clk_put(data->clk);
free_irq(data->irq, data);
iounmap(data->base);
release_mem_region(data->mem->start, resource_size(data->mem));
platform_set_drvdata(pdev, NULL);
kfree(data);
return 0;
}