From: Roi Dayan <roid@xxxxxxxxxxxx>
[ 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@xxxxxxxxxxxx>
Reviewed-by: Mark Bloch <markb@xxxxxxxxxxxx>
Reviewed-by: Paul Blakey <paulb@xxxxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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);
}
