[PATCH 2/2] iommu/arm-smmu: Delete an unnecessary check before the function call "free_io_pgtable_ops"
From: Will Deacon <hidden>
Date: 2015-06-29 16:47:43
Also in:
linux-iommu
Subsystem:
iommu subsystem, the rest · Maintainers:
Joerg Roedel, Will Deacon, Linus Torvalds
From: Markus Elfring <redacted> The free_io_pgtable_ops() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <redacted> Signed-off-by: Will Deacon <redacted> --- drivers/iommu/arm-smmu-v3.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index f14130121298..8e9ec81ce4bb 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c@@ -1389,8 +1389,7 @@ static void arm_smmu_domain_free(struct iommu_domain *domain) struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain); struct arm_smmu_device *smmu = smmu_domain->smmu; - if (smmu_domain->pgtbl_ops) - free_io_pgtable_ops(smmu_domain->pgtbl_ops); + free_io_pgtable_ops(smmu_domain->pgtbl_ops); /* Free the CD and ASID, if we allocated them */ if (smmu_domain->stage == ARM_SMMU_DOMAIN_S1) {
--
2.1.4