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Commit d7da7df3 authored by qctecmdr Service's avatar qctecmdr Service Committed by Gerrit - the friendly Code Review server
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Merge "iommu: debug: Fix leaky context banks"

parents 96f4c9b1 b398b596

drivers/iommu/iommu-debug.c

+4 −1
Original line number Diff line number Diff line
@@ -161,6 +161,7 @@ static void *test_virt_addr; 
struct iommu_debug_device {

	struct device *dev;

	struct iommu_domain *domain;

	struct dma_iommu_mapping *mapping;

	u64 iova;

	u64 phys;

	size_t len;
@@ -1329,6 +1330,8 @@ static ssize_t __iommu_debug_dma_attach_write(struct file *file, 


		if (arm_iommu_attach_device(dev, dma_mapping))

			goto out_release_mapping;



		ddev->mapping = dma_mapping;

		pr_err("Attached\n");

	} else {

		if (!dev->archdata.mapping) {
@@ -1342,7 +1345,7 @@ static ssize_t __iommu_debug_dma_attach_write(struct file *file, 
			goto out;

		}

		arm_iommu_detach_device(dev);

		arm_iommu_release_mapping(dev->archdata.mapping);

		arm_iommu_release_mapping(ddev->mapping);

		pr_err("Detached\n");

	}

	retval = count;