udp: Should use spin_lock_bh()/spin_unlock_bh() in udp_lib_unhash()

Spotted by Alexander Beregalov

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index c3ecec8a9e1c..f760b86e7530 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -970,12 +970,12 @@ void udp_lib_unhash(struct sock *sk)
         unsigned int hash = udp_hashfn(sock_net(sk), sk->sk_hash);
         struct udp_hslot *hslot = &udptable->hash[hash];
 
-        spin_lock(&hslot->lock);
+        spin_lock_bh(&hslot->lock);
         if (sk_del_node_init_rcu(sk)) {
                 inet_sk(sk)->num = 0;
                 sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
         }
-        spin_unlock(&hslot->lock);
+        spin_unlock_bh(&hslot->lock);
 }
 EXPORT_SYMBOL(udp_lib_unhash);