net: Make sure BHs are disabled in sock_prot_inuse_add()

The rule of calling sock_prot_inuse_add() is that BHs must
be disabled.  Some new calls were added where this was not
true and this tiggers warnings as reported by Ilpo.

Fix this by adding explicit BH disabling around those call sites.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index e1ca8f744ca5..a45a9f7369ed 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -361,7 +361,9 @@ static void unix_sock_destructor(struct sock *sk)
                 unix_release_addr(u->addr);
 
         atomic_dec(&unix_nr_socks);
+        local_bh_disable();
         sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
+        local_bh_enable();
 #ifdef UNIX_REFCNT_DEBUG
         printk(KERN_DEBUG "UNIX %p is destroyed, %d are still alive.\n", sk,
                 atomic_read(&unix_nr_socks));