diff options
Diffstat (limited to 'net/core/neighbour.c')
| -rw-r--r-- | net/core/neighbour.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/core/neighbour.c b/net/core/neighbour.c index a95cfe77f7f0..c56a4e7bf790 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -820,7 +820,8 @@ int pneigh_create(struct neigh_table *tbl, struct net *net, update: WRITE_ONCE(n->flags, flags); n->permanent = permanent; - WRITE_ONCE(n->protocol, protocol); + if (protocol) + WRITE_ONCE(n->protocol, protocol); out: mutex_unlock(&tbl->phash_lock); return err; |