net/mlx5: fix leak on Tx queue creation failure

In Tx queue creation, there are two validations for the Tx
configuration.

When one of them fails, the MR btree memory was not freed what caused a
memory leak.

Free it.

Fixes: f6d9ab4e769f ("net/mlx5: check Tx queue size overflow")
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_txq.c b/drivers/net/mlx5/mlx5_txq.c
index d96abef..b81bb4a 100644 (file)
--- a/drivers/net/mlx5/mlx5_txq.c
+++ b/drivers/net/mlx5/mlx5_txq.c
@@ -1146,6 +1146,7 @@ mlx5_txq_new(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc,
        LIST_INSERT_HEAD(&priv->txqsctrl, tmpl, next);
        return tmpl;
 error:
+       mlx5_mr_btree_free(&tmpl->txq.mr_ctrl.cache_bh);
        mlx5_free(tmpl);
        return NULL;
 }