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iommu/omap: Convert to devm_* interfaces

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Use the various devm_ interfaces to simplify the cleanup in
probe and remove functions.

Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch>
Signed-off-by: Suman Anna <s-anna@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
This commit is contained in:
Suman Anna 2014-02-28 14:42:32 -06:00 committed by Joerg Roedel
parent 0414855fdc
commit f129b3dfb5
1 changed files with 10 additions and 42 deletions
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52
drivers/iommu/omap-iommu.c
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@ -941,7 +941,7 @@ static int omap_iommu_probe(struct platform_device *pdev)
struct resource *res;
struct iommu_platform_data *pdata = pdev->dev.platform_data;
obj = kzalloc(sizeof(*obj) + MMU_REG_SIZE, GFP_KERNEL);
obj = devm_kzalloc(&pdev->dev, sizeof(*obj) + MMU_REG_SIZE, GFP_KERNEL);
if (!obj)
return -ENOMEM;
@ -958,33 +958,18 @@ static int omap_iommu_probe(struct platform_device *pdev)
INIT_LIST_HEAD(&obj->mmap);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
err = -ENODEV;
goto err_mem;
}
res = request_mem_region(res->start, resource_size(res),
dev_name(&pdev->dev));
if (!res) {
err = -EIO;
goto err_mem;
}
obj->regbase = ioremap(res->start, resource_size(res));
if (!obj->regbase) {
err = -ENOMEM;
goto err_ioremap;
}
obj->regbase = devm_ioremap_resource(obj->dev, res);
if (IS_ERR(obj->regbase))
return PTR_ERR(obj->regbase);
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
err = -ENODEV;
goto err_irq;
}
err = request_irq(irq, iommu_fault_handler, IRQF_SHARED,
dev_name(&pdev->dev), obj);
if (irq < 0)
return -ENODEV;
err = devm_request_irq(obj->dev, irq, iommu_fault_handler, IRQF_SHARED,
dev_name(obj->dev), obj);
if (err < 0)
goto err_irq;
return err;
platform_set_drvdata(pdev, obj);
pm_runtime_irq_safe(obj->dev);
@ -992,34 +977,17 @@ static int omap_iommu_probe(struct platform_device *pdev)
dev_info(&pdev->dev, "%s registered\n", obj->name);
return 0;
err_irq:
iounmap(obj->regbase);
err_ioremap:
release_mem_region(res->start, resource_size(res));
err_mem:
kfree(obj);
return err;
}
static int omap_iommu_remove(struct platform_device *pdev)
{
int irq;
struct resource *res;
struct omap_iommu *obj = platform_get_drvdata(pdev);
iopgtable_clear_entry_all(obj);
irq = platform_get_irq(pdev, 0);
free_irq(irq, obj);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(res->start, resource_size(res));
iounmap(obj->regbase);
pm_runtime_disable(obj->dev);
dev_info(&pdev->dev, "%s removed\n", obj->name);
kfree(obj);
return 0;
}