[PATCH v3 34/36] vdpa/*: remove unnecessary NULL checks

[Stephen Hemminger]

Remove redundant NULL pointer checks before free functions
found by nullfree.cocci

Signed-off-by: Stephen Hemminger <step...@networkplumber.org>
Reviewed-by: Chenbo Xia <chenbo....@intel.com>
---
 drivers/vdpa/ifc/ifcvf_vdpa.c       | 9 +++------
 drivers/vdpa/mlx5/mlx5_vdpa_mem.c   | 3 +--
 drivers/vdpa/mlx5/mlx5_vdpa_virtq.c | 3 +--
 3 files changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/vdpa/ifc/ifcvf_vdpa.c b/drivers/vdpa/ifc/ifcvf_vdpa.c
index 3853c4cf7e85..9f05595b6b34 100644
--- a/drivers/vdpa/ifc/ifcvf_vdpa.c
+++ b/drivers/vdpa/ifc/ifcvf_vdpa.c
@@ -226,8 +226,7 @@ ifcvf_dma_map(struct ifcvf_internal *internal, bool do_map)
        }
 
 exit:
-       if (mem)
-               free(mem);
+       free(mem);
        return ret;
 }
 
@@ -253,8 +252,7 @@ hva_to_gpa(int vid, uint64_t hva)
        }
 
 exit:
-       if (mem)
-               free(mem);
+       free(mem);
        return gpa;
 }
 
@@ -661,8 +659,7 @@ m_ifcvf_start(struct ifcvf_internal *internal)
 
 error:
        for (i = 0; i < nr_vring; i++)
-               if (internal->m_vring[i].desc)
-                       rte_free(internal->m_vring[i].desc);
+               rte_free(internal->m_vring[i].desc);
 
        return -1;
 }
diff --git a/drivers/vdpa/mlx5/mlx5_vdpa_mem.c 
b/drivers/vdpa/mlx5/mlx5_vdpa_mem.c
index 130d201a85f5..599079500b03 100644
--- a/drivers/vdpa/mlx5/mlx5_vdpa_mem.c
+++ b/drivers/vdpa/mlx5/mlx5_vdpa_mem.c
@@ -283,8 +283,7 @@ mlx5_vdpa_mem_register(struct mlx5_vdpa_priv *priv)
        priv->gpa_mkey_index = entry->mkey->id;
        return 0;
 error:
-       if (entry)
-               rte_free(entry);
+       rte_free(entry);
        mlx5_vdpa_mem_dereg(priv);
        rte_errno = -ret;
        return ret;
diff --git a/drivers/vdpa/mlx5/mlx5_vdpa_virtq.c 
b/drivers/vdpa/mlx5/mlx5_vdpa_virtq.c
index 2f32aef67fbc..3416797d289c 100644
--- a/drivers/vdpa/mlx5/mlx5_vdpa_virtq.c
+++ b/drivers/vdpa/mlx5/mlx5_vdpa_virtq.c
@@ -91,8 +91,7 @@ mlx5_vdpa_virtq_unset(struct mlx5_vdpa_virtq *virtq)
                if (virtq->umems[i].obj)
                        claim_zero(mlx5_glue->devx_umem_dereg
                                                         (virtq->umems[i].obj));
-               if (virtq->umems[i].buf)
-                       rte_free(virtq->umems[i].buf);
+               rte_free(virtq->umems[i].buf);
        }
        memset(&virtq->umems, 0, sizeof(virtq->umems));
        if (virtq->eqp.fw_qp)
-- 
2.34.1