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intel-iommu: Fix use after release during device attach
[linux-2.6-block.git]
/
drivers
/
pci
/
intel-iommu.c
diff --git
a/drivers/pci/intel-iommu.c
b/drivers/pci/intel-iommu.c
index 4789f8e8bf7ad91cae0b0a1043349ac96ea5fa64..35463ddf10a1605dec3f0d64d518e31518bf101c 100644
(file)
--- a/
drivers/pci/intel-iommu.c
+++ b/
drivers/pci/intel-iommu.c
@@
-3627,9
+3627,9
@@
static int intel_iommu_attach_device(struct iommu_domain *domain,
pte = dmar_domain->pgd;
if (dma_pte_present(pte)) {
- free_pgtable_page(dmar_domain->pgd);
dmar_domain->pgd = (struct dma_pte *)
phys_to_virt(dma_pte_addr(pte));
+ free_pgtable_page(pte);
}
dmar_domain->agaw--;
}