Commit 3c117b54 authored Nov 02, 2016 by Robin Murphy Committed by Joerg Roedel Nov 08, 2016

iommu/arm-smmu: Check that iommu_fwspecs are ours



We seem to have forgotten to check that iommu_fwspecs actually belong to
us before we go ahead and dereference their private data. Oops.

Fixes: 021bb842 ("iommu/arm-smmu: Wire up generic configuration support")
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

parent ec615f43

drivers/iommu/arm-smmu.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1400,7 +1400,7 @@ static int arm_smmu_add_device(struct device *dev)
		fwspec = dev->iommu_fwspec;
		if (ret)
		goto out_free;
		} else if (fwspec) {
		} else if (fwspec && fwspec->ops == &arm_smmu_ops) {
		smmu = arm_smmu_get_by_node(to_of_node(fwspec->iommu_fwnode));
		} else {
		return -ENODEV;