iommu/arm-smmu: Axe a useless test in 'arm_smmu_master_alloc_smes()'

'iommu_group_get_for_dev()' never returns NULL, so this test can be removed.

Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index bd6683c210da6651dad797a3f1a871658fcab811..080af0326816dafebb52c6b8f862c5484f37d5eb 100644 (file)
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1054,8 +1054,6 @@ static int arm_smmu_master_alloc_smes(struct device *dev)
        }
 
        group = iommu_group_get_for_dev(dev);
-       if (!group)
-               group = ERR_PTR(-ENOMEM);
        if (IS_ERR(group)) {
                ret = PTR_ERR(group);
                goto out_err;