[PATCH] iommu: apple-dart: Remove unnecessary NULL check before free_io_pgtable_ops()

[Chen Ni]

free_io_pgtable_ops() checks for NULL pointers internally.
Remove unneeded NULL check here.

Signed-off-by: Chen Ni <nichen at iscas.ac.cn>
---
 drivers/iommu/apple-dart.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iommu/apple-dart.c b/drivers/iommu/apple-dart.c
index e13501541fdd..757d24f67ad4 100644
--- a/drivers/iommu/apple-dart.c
+++ b/drivers/iommu/apple-dart.c
@@ -776,8 +776,7 @@ static void apple_dart_domain_free(struct iommu_domain *domain)
 {
 	struct apple_dart_domain *dart_domain = to_dart_domain(domain);
 
-	if (dart_domain->pgtbl_ops)
-		free_io_pgtable_ops(dart_domain->pgtbl_ops);
+	free_io_pgtable_ops(dart_domain->pgtbl_ops);
 
 	kfree(dart_domain);
 }
-- 
2.25.1