Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/net-2.6: (27 commits)
  [INET]: Fix inet_diag dead-lock regression
  [NETNS]: Fix /proc/net breakage
  [TEXTSEARCH]: Do not allow zero length patterns in the textsearch infrastructure
  [NETFILTER]: fix forgotten module release in xt_CONNMARK and xt_CONNSECMARK
  [NETFILTER]: xt_TCPMSS: remove network triggerable WARN_ON
  [DECNET]: dn_nl_deladdr() almost always returns no error
  [IPV6]: Restore IPv6 when MTU is big enough
  [RXRPC]: Add missing select on CRYPTO
  mac80211: rate limit wep decrypt failed messages
  rfkill: fix double-mutex-locking
  mac80211: drop unencrypted frames if encryption is expected
  mac80211: Fix behavior of ieee80211_open and ieee80211_close
  ieee80211: fix unaligned access in ieee80211_copy_snap
  mac80211: free ifsta->extra_ie and clear IEEE80211_STA_PRIVACY_INVOKED
  SCTP: Fix build issues with SCTP AUTH.
  SCTP: Fix chunk acceptance when no authenticated chunks were listed.
  SCTP: Fix the supported extensions paramter
  SCTP: Fix SCTP-AUTH to correctly add HMACS paramter.
  SCTP: Fix the number of HB transmissions.
  [TCP] illinois: Incorrect beta usage
  ...

1 files changed, 8 insertions, 1 deletions

diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index e835da8fc091..060bba4567d2 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1637,8 +1637,15 @@ static int unix_dgram_recvmsg(struct kiocb *iocb, struct socket *sock,
         mutex_lock(&u->readlock);
 
         skb = skb_recv_datagram(sk, flags, noblock, &err);
-        if (!skb)
+        if (!skb) {
+                unix_state_lock(sk);
+                /* Signal EOF on disconnected non-blocking SEQPACKET socket. */
+                if (sk->sk_type == SOCK_SEQPACKET && err == -EAGAIN &&
+                    (sk->sk_shutdown & RCV_SHUTDOWN))
+                        err = 0;
+                unix_state_unlock(sk);
                 goto out_unlock;
+        }
 
         wake_up_interruptible_sync(&u->peer_wait);