From f129b3dfb5517c91295da9fe0d2e584d8da25518 Mon Sep 17 00:00:00 2001 From: Suman Anna Date: Fri, 28 Feb 2014 14:42:32 -0600 Subject: [PATCH] iommu/omap: Convert to devm_* interfaces Use the various devm_ interfaces to simplify the cleanup in probe and remove functions. Signed-off-by: Florian Vaussard Signed-off-by: Suman Anna Acked-by: Laurent Pinchart Signed-off-by: Joerg Roedel --- drivers/iommu/omap-iommu.c | 52 ++++++++------------------------------ 1 file changed, 10 insertions(+), 42 deletions(-) diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c index bcd78a720630..fff2ffdc26f4 100644 --- a/drivers/iommu/omap-iommu.c +++ b/drivers/iommu/omap-iommu.c @@ -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; } -- 2.20.1