diff options
| author | Cong Wang <xiyou.wangcong@gmail.com> | 2019-07-03 17:21:13 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-07-05 15:22:27 -0700 |
| commit | b9a1e627405d68d475a3c1f35e685ccfb5bbe668 (patch) | |
| tree | 4130c796a3b6477e01126514e08f9cb2fc91f4b6 /net/hsr/hsr_framereg.c | |
| parent | 619afef01f74f3572b5e9a266c1230dc83761eec (diff) | |
| download | linux-b9a1e627405d68d475a3c1f35e685ccfb5bbe668.tar.bz2 | |
hsr: implement dellink to clean up resources
hsr_link_ops implements ->newlink() but not ->dellink(),
which leads that resources not released after removing the device,
particularly the entries in self_node_db and node_db.
So add ->dellink() implementation to replace the priv_destructor.
This also makes the code slightly easier to understand.
Reported-by: syzbot+c6167ec3de7def23d1e8@syzkaller.appspotmail.com
Cc: Arvid Brodin <arvid.brodin@alten.se>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/hsr/hsr_framereg.c')
| -rw-r--r-- | net/hsr/hsr_framereg.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c index 2d7a19750436..292be446007b 100644 --- a/net/hsr/hsr_framereg.c +++ b/net/hsr/hsr_framereg.c @@ -104,7 +104,7 @@ int hsr_create_self_node(struct list_head *self_node_db, return 0; } -void hsr_del_node(struct list_head *self_node_db) +void hsr_del_self_node(struct list_head *self_node_db) { struct hsr_node *node; @@ -117,6 +117,15 @@ void hsr_del_node(struct list_head *self_node_db) } } +void hsr_del_nodes(struct list_head *node_db) +{ + struct hsr_node *node; + struct hsr_node *tmp; + + list_for_each_entry_safe(node, tmp, node_db, mac_list) + kfree(node); +} + /* Allocate an hsr_node and add it to node_db. 'addr' is the node's address_A; * seq_out is used to initialize filtering of outgoing duplicate frames * originating from the newly added node. |