diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pd.c b/drivers/net/ethernet/mellanox/mlx5/core/pd.c
index b92d6f621c83..aabc53ad8bdd 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/pd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/pd.c
@@ -37,12 +37,12 @@
 
 int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn)
 {
-	u32 out[MLX5_ST_SZ_DW(alloc_pd_out)] = {0};
-	u32 in[MLX5_ST_SZ_DW(alloc_pd_in)]   = {0};
+	u32 out[MLX5_ST_SZ_DW(alloc_pd_out)] = {};
+	u32 in[MLX5_ST_SZ_DW(alloc_pd_in)] = {};
 	int err;
 
 	MLX5_SET(alloc_pd_in, in, opcode, MLX5_CMD_OP_ALLOC_PD);
-	err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
+	err = mlx5_cmd_exec_inout(dev, alloc_pd, in, out);
 	if (!err)
 		*pdn = MLX5_GET(alloc_pd_out, out, pd);
 	return err;
@@ -51,11 +51,10 @@ EXPORT_SYMBOL(mlx5_core_alloc_pd);
 
 int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn)
 {
-	u32 out[MLX5_ST_SZ_DW(dealloc_pd_out)] = {0};
-	u32 in[MLX5_ST_SZ_DW(dealloc_pd_in)]   = {0};
+	u32 in[MLX5_ST_SZ_DW(dealloc_pd_in)] = {};
 
 	MLX5_SET(dealloc_pd_in, in, opcode, MLX5_CMD_OP_DEALLOC_PD);
 	MLX5_SET(dealloc_pd_in, in, pd, pdn);
-	return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
+	return mlx5_cmd_exec_in(dev, dealloc_pd, in);
 }
 EXPORT_SYMBOL(mlx5_core_dealloc_pd);