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Commit f303e507 authored by Joerg Roedel's avatar Joerg Roedel
Browse files

iommu/vt-d: Avoid duplicate device_domain_info structures 



When a 'struct device_domain_info' is created as an alias
for another device, this struct will not be re-used when the
real device is encountered. Fix that to avoid duplicate
device_domain_info structures being added.

Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 08a7f456

drivers/iommu/intel-iommu.c

+7 −3
Original line number Diff line number Diff line
@@ -2270,12 +2270,16 @@ static struct dmar_domain *dmar_insert_one_dev_info(struct intel_iommu *iommu, 
	spin_lock_irqsave(&device_domain_lock, flags);

	if (dev)

		found = find_domain(dev);

	else {



	if (!found) {

		struct device_domain_info *info2;

		info2 = dmar_search_domain_by_dev_info(iommu->segment, bus, devfn);

		if (info2)

		if (info2) {

			found      = info2->domain;

			info2->dev = dev;

		}

	}



	if (found) {

		spin_unlock_irqrestore(&device_domain_lock, flags);

		free_devinfo_mem(info);