From: Roi Dayan roid@mellanox.com
[ Upstream commit aee37f3d940ca732df71c3df49347bccaafc0b24 ]
Unmanaged flow tables doesn't have a parent and tree_put_node() assume there is always a parent if cleaning is needed. fix that.
Fixes: 5281a0c90919 ("net/mlx5: fs_core: Introduce unmanaged flow tables") Signed-off-by: Roi Dayan roid@mellanox.com Reviewed-by: Mark Bloch markb@mellanox.com Reviewed-by: Paul Blakey paulb@mellanox.com Signed-off-by: Saeed Mahameed saeedm@mellanox.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-)
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c @@ -323,14 +323,13 @@ static void tree_put_node(struct fs_node if (node->del_hw_func) node->del_hw_func(node); if (parent_node) { - /* Only root namespace doesn't have parent and we just - * need to free its node. - */ down_write_ref_node(parent_node, locked); list_del_init(&node->list); if (node->del_sw_func) node->del_sw_func(node); up_write_ref_node(parent_node, locked); + } else if (node->del_sw_func) { + node->del_sw_func(node); } else { kfree(node); } @@ -447,8 +446,10 @@ static void del_sw_flow_table(struct fs_ fs_get_obj(ft, node);
rhltable_destroy(&ft->fgs_hash); - fs_get_obj(prio, ft->node.parent); - prio->num_ft--; + if (ft->node.parent) { + fs_get_obj(prio, ft->node.parent); + prio->num_ft--; + } kfree(ft); }