Though I don't face an oops, but it is more safer to
set table's subsys through rcu_assign_pointer.
Signed-off-by: Gao feng <gaofeng@xxxxxxxxxxxxxx>
---
net/netfilter/nfnetlink.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c
index 572d87d..3cd2fe6 100644
--- a/net/netfilter/nfnetlink.c
+++ b/net/netfilter/nfnetlink.c
@@ -78,7 +78,7 @@ EXPORT_SYMBOL_GPL(nfnetlink_subsys_register);
int nfnetlink_subsys_unregister(const struct nfnetlink_subsystem *n)
{
nfnl_lock(n->subsys_id);
- table[n->subsys_id].subsys = NULL;
+ rcu_assign_pointer(table[n->subsys_id].subsys, NULL);
nfnl_unlock(n->subsys_id);
synchronize_rcu();
return 0;
--
1.8.3.1
--
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