regex/mlx5: fix leak on device removal

In the removal function, PMD releases all driver resources allocated
in the probe function.

The MR btree memory is allocated in the probe function, but it is not
freed in remove function what caused a memory leak.

Release it.

Fixes: cda883bbb655 ("regex/mlx5: add dynamic memory registration to datapath")
Cc: stable@dpdk.org
Signed-off-by: Michael Baum <michaelba@nvidia.com>
Acked-by: Ori Kam <orika@nvidia.com>

diff --git a/drivers/regex/mlx5/mlx5_regex.c b/drivers/regex/mlx5/mlx5_regex.c
index 84ba2e5224c837f90e7481d455dae11f6ffb34b6..279b89acc99358bbdbb9ac8a83b6660729a0203f 100644 (file)
--- a/drivers/regex/mlx5/mlx5_regex.c
+++ b/drivers/regex/mlx5/mlx5_regex.c
@@ -272,6 +272,8 @@ mlx5_regex_dev_remove(struct rte_device *rte_dev)
                if (TAILQ_EMPTY(&mlx5_mem_event_list))
                        rte_mem_event_callback_unregister("MLX5_MEM_EVENT_CB",
                                                          NULL);
+               if (priv->mr_scache.cache.table)
+                       mlx5_mr_release_cache(&priv->mr_scache);
                if (priv->pd)
                        mlx5_glue->dealloc_pd(priv->pd);
                if (priv->uar)