iommu/vt-d: release invalidation queue when destroying IOMMU unit

Release associated invalidation queue when destroying IOMMU unit to avoid memory leak. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>
mariux64 · Jan 9, 2014 · a84da70 · a84da70
1 parent 5ced12a
commit a84da70
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
@@ -737,6 +737,12 @@ static void free_iommu(struct intel_iommu *iommu)
 		destroy_irq(iommu->irq);
 	}
 
+	if (iommu->qi) {
+		free_page((unsigned long)iommu->qi->desc);
+		kfree(iommu->qi->desc_status);
+		kfree(iommu->qi);
+	}
+
 	if (iommu->reg)
 		unmap_iommu(iommu);