[PATCH] iommu/arm-smmu: Delete an unnecessary check before free_io_pgtable_ops()
SF Markus Elfring
elfring at users.sourceforge.net
Fri Nov 6 09:38:19 PST 2015
From: Markus Elfring <elfring at users.sourceforge.net>
Date: Fri, 6 Nov 2015 18:32:41 +0100
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 <elfring at users.sourceforge.net>
---
drivers/iommu/arm-smmu.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 47dc7a7..1ce4b85 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -945,9 +945,7 @@ static void arm_smmu_destroy_domain_context(struct iommu_domain *domain)
free_irq(irq, domain);
}
- if (smmu_domain->pgtbl_ops)
- free_io_pgtable_ops(smmu_domain->pgtbl_ops);
-
+ free_io_pgtable_ops(smmu_domain->pgtbl_ops);
__arm_smmu_free_bitmap(smmu->context_map, cfg->cbndx);
}
--
2.6.2
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