iommu/vt-d: Fix leaked ioremap mapping

iommu_load_old_irte() appears to leak the old_irte mapping after use.

Cc: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index f15692a410c7e7064e844be2b7d83feee20ef5c5..27cdfa84ec5bd37e5ca964137b9831c356b8c7f3 100644 (file)
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -426,6 +426,8 @@ static int iommu_load_old_irte(struct intel_iommu *iommu)
                        bitmap_set(iommu->ir_table->bitmap, i, 1);
        }
 
+       iounmap(old_ir_table);
+
        return 0;
 }