[PATCH -next] iommu/arm-smmu-v3: remove set but not used variable 'smmu'

[Chen Zhou]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/iommu/arm-smmu-v3.c:2989:26:
warning: variable âsmmuâ set but not used [-Wunused-but-set-variable]
  struct arm_smmu_device *smmu;

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Chen Zhou <chenzhou10@xxxxxxxxxx>
---
 drivers/iommu/arm-smmu-v3.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index 42e1ee7e5197..89ee9c5d8b88 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -2986,13 +2986,11 @@ static void arm_smmu_release_device(struct device *dev)
 {
 	struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
 	struct arm_smmu_master *master;
-	struct arm_smmu_device *smmu;
 
 	if (!fwspec || fwspec->ops != &arm_smmu_ops)
 		return;
 
 	master = dev_iommu_priv_get(dev);
-	smmu = master->smmu;
 	arm_smmu_detach_dev(master);
 	arm_smmu_disable_pasid(master);
 	kfree(master);
-- 
2.20.1