pci_real_dma_dev(to_pci_dev(dev)) != to_pci_dev(dev);
}
-static struct dmar_domain *dmar_insert_one_dev_info(struct intel_iommu *iommu,
- int bus, int devfn,
- struct device *dev,
- struct dmar_domain *domain)
+static int dmar_insert_one_dev_info(struct intel_iommu *iommu, int bus,
+ int devfn, struct device *dev,
+ struct dmar_domain *domain)
{
struct device_domain_info *info = dev_iommu_priv_get(dev);
unsigned long flags;
spin_unlock(&iommu->lock);
if (ret) {
spin_unlock_irqrestore(&device_domain_lock, flags);
- return NULL;
+ return ret;
}
list_add(&info->link, &domain->devices);
spin_unlock_irqrestore(&device_domain_lock, flags);
if (ret) {
dev_err(dev, "PASID table allocation failed\n");
dmar_remove_one_dev_info(dev);
- return NULL;
+ return ret;
}
/* Setup the PASID entry for requests without PASID: */
if (ret) {
dev_err(dev, "Setup RID2PASID failed\n");
dmar_remove_one_dev_info(dev);
- return NULL;
+ return ret;
}
}
- if (domain_context_mapping(domain, dev)) {
+ ret = domain_context_mapping(domain, dev);
+ if (ret) {
dev_err(dev, "Domain context map failed\n");
dmar_remove_one_dev_info(dev);
- return NULL;
+ return ret;
}
- return domain;
+ return 0;
}
static int iommu_domain_identity_map(struct dmar_domain *domain,
static int domain_add_dev_info(struct dmar_domain *domain, struct device *dev)
{
- struct dmar_domain *ndomain;
struct intel_iommu *iommu;
u8 bus, devfn;
if (!iommu)
return -ENODEV;
- ndomain = dmar_insert_one_dev_info(iommu, bus, devfn, dev, domain);
- if (ndomain != domain)
- return -EBUSY;
-
- return 0;
+ return dmar_insert_one_dev_info(iommu, bus, devfn, dev, domain);
}
static bool device_has_rmrr(struct device *dev)