Commit 54ea4d34 authored Mar 31, 2020 by Isaac J. Manjarres

iommu: iommu-debug: Fix input IOVA usage in atos_write()



atos_write() uses the IOVA stored in the debug device structure
for translating the input IOVA to a physical address, which is
not correct, given that the debug device structure's IOVA field
has not been initialized yet. Use the IOVA given as an input
for translating the IOVA to a physical address.

Change-Id: I7a8f241abc573fcf877147ca4d808c025cbb45f9
Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>

parent 1264c046

drivers/iommu/iommu-debug.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1521,7 +1521,7 @@ static ssize_t iommu_debug_atos_write(struct file *file,
		return -EINVAL;
		}

		phys = iommu_iova_to_phys(ddev->domain, ddev->iova);
		phys = iommu_iova_to_phys(ddev->domain, iova);
		pfn = __phys_to_pfn(phys);
		if (!pfn_valid(pfn)) {
		dev_err(ddev->dev, "Invalid ATOS operation page %pa\n", &phys);