net/mlx5: fix Rx hash queue creation error flow

The mlx5_hrxq_new function allocates several resources and if one of the
allocations fails, the function jumps to an error label where it
releases all the allocated resources.

When the TIR action creation fails, the hrxq memory is not released what
can cause a resource leak.

Add an appropriate release to the hrxq pointer in the error flow.

Fixes: 772dc0eb83d3 ("net/mlx5: convert hrxq to indexed")
Fixes: dc9ceff73c99 ("net/mlx5: create advanced RxQ via DevX")
Cc: stable@dpdk.org
Signed-off-by: Michael Baum <michaelba@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>

diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index 946f745..0d16592 100644 (file)
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -2873,7 +2873,7 @@ mlx5_hrxq_new(struct rte_eth_dev *dev,
              int tunnel __rte_unused)
 {
        struct mlx5_priv *priv = dev->data->dev_private;
-       struct mlx5_hrxq *hrxq;
+       struct mlx5_hrxq *hrxq = NULL;
        uint32_t hrxq_idx = 0;
        struct ibv_qp *qp = NULL;
        struct mlx5_ind_table_obj *ind_tbl;
@@ -3074,6 +3074,8 @@ error:
                claim_zero(mlx5_glue->destroy_qp(qp));
        else if (tir)
                claim_zero(mlx5_devx_cmd_destroy(tir));
+       if (hrxq)
+               mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_HRXQ], hrxq_idx);
        rte_errno = err; /* Restore rte_errno. */
        return 0;
 }