[PATCH v5 2/2] net/mlx5: Fix memory leak in error path of ttc creation

From: Henry Martin
Date: Tue Apr 15 2025 - 08:42:49 EST


Free ttc table memory when unsupported ttc_type is passed, to avoid
memory leak on the default error path in mlx5_create_inner_ttc_table()
and mlx5_create_ttc_table().

Fixes: 137f3d50ad2a ("net/mlx5: Support matching on l4_type for ttc_table")
Signed-off-by: Henry Martin <bsdhenrymartin@xxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlx5/core/lib/fs_ttc.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/fs_ttc.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/fs_ttc.c
index e48afd620d7e..077fe908bf86 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/fs_ttc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/fs_ttc.c
@@ -651,6 +651,7 @@ struct mlx5_ttc_table *mlx5_create_inner_ttc_table(struct mlx5_core_dev *dev,
MLX5_CAP_NIC_RX_FT_FIELD_SUPPORT_2(dev, inner_l4_type);
break;
default:
+ kvfree(ttc);
return ERR_PTR(-EINVAL);
}

@@ -729,6 +730,7 @@ struct mlx5_ttc_table *mlx5_create_ttc_table(struct mlx5_core_dev *dev,
MLX5_CAP_NIC_RX_FT_FIELD_SUPPORT_2(dev, outer_l4_type);
break;
default:
+ kvfree(ttc);
return ERR_PTR(-EINVAL);
}

--
2.34.1