netfilter: netns ebtables: more cleanup during ebt_unregister_table()

Now that ebt_unregister_table() can be called during netns stop, and module
pinning scheme can't prevent netns stop, do table cleanup by hand.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>

diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 82e1752..fa108c4 100644 (file)
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -1209,6 +1209,10 @@ void ebt_unregister_table(struct ebt_table *table)
        mutex_lock(&ebt_mutex);
        list_del(&table->list);
        mutex_unlock(&ebt_mutex);
+       EBT_ENTRY_ITERATE(table->private->entries, table->private->entries_size,
+                         ebt_cleanup_entry, NULL);
+       if (table->private->nentries)
+               module_put(table->me);
        vfree(table->private->entries);
        if (table->private->chainstack) {
                for_each_possible_cpu(i)