diff options
Diffstat (limited to 'net/ipv6/ip6mr.c')
| -rw-r--r-- | net/ipv6/ip6mr.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c index a6d97952bf53..fa6720377e82 100644 --- a/net/ipv6/ip6mr.c +++ b/net/ipv6/ip6mr.c @@ -559,12 +559,11 @@ static int pim6_rcv(struct sk_buff *skb) if (ip6mr_fib_lookup(net, &fl6, &mrt) < 0) goto drop; - reg_vif_num = mrt->mroute_reg_vif_num; - read_lock(&mrt_lock); + /* Pairs with WRITE_ONCE() in mif6_add()/mif6_delete() */ + reg_vif_num = READ_ONCE(mrt->mroute_reg_vif_num); if (reg_vif_num >= 0) reg_dev = vif_dev_read(&mrt->vif_table[reg_vif_num]); - read_unlock(&mrt_lock); if (!reg_dev) goto drop; |