1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index f47d04aced87..2e2c7406131d 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -844,10 +844,8 @@ static void iommu_flush_write_buffer(struct intel_iommu *iommu)
 
         if (!rwbf_quirk && !cap_rwbf(iommu->cap))
                 return;
-        val = iommu->gcmd | DMA_GCMD_WBF;
-
         spin_lock_irqsave(&iommu->register_lock, flag);
-        writel(val, iommu->reg + DMAR_GCMD_REG);
+        writel(iommu->gcmd | DMA_GCMD_WBF, iommu->reg + DMAR_GCMD_REG);
 
         /* Make sure hardware complete it */
         IOMMU_WAIT_OP(iommu, DMAR_GSTS_REG,