x86, vt-d: Handle previous faults after enabling fault handling

[deliverable/linux.git] / drivers / pci / dmar.c

diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index 0157708d474da57ad0532a3bb8bbbd90f0204aeb..09933eb9126be48f154e809bdcfdc57292a4858a 100644 (file)
--- a/drivers/pci/dmar.c
+++ b/drivers/pci/dmar.c
@@ -1417,6 +1417,11 @@ int __init enable_drhd_fault_handling(void)
                               (unsigned long long)drhd->reg_base_addr, ret);
                        return -1;
                }
+
+               /*
+                * Clear any previous faults.
+                */
+               dmar_fault(iommu->irq, iommu);
        }
 
        return 0;