netrom: Kill spurious NULL'ing of sk->sk_socket.

In nr_release(), one code path calls sock_orphan() which
will NULL out sk->sk_socket already.

In the other case, handling states other than NR_STATE_{0,1,2,3},
seems to not be possible other than due to bugs.  Even for an
uninitialized nr->state value, that would be zero or NR_STATE_0.
It might be wise to stick a WARN_ON() here.

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

1 files changed, 0 insertions, 2 deletions

diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 58779624cdbe..74884f4a6255 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -536,11 +536,9 @@ static int nr_release(struct socket *sock)
                 sk->sk_state_change(sk);
                 sock_orphan(sk);
                 sock_set_flag(sk, SOCK_DESTROY);
-                sk->sk_socket   = NULL;
                 break;
 
         default:
-                sk->sk_socket = NULL;
                 break;
         }