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

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits)
  slip: fix wrong SLIP6 ifdef-endif placing
  natsemi: fix another dma-debug report
  sctp: ABORT if receive, reassmbly, or reodering queue is not empty while closing socket
  net: Fix default in docs for tcp_orphan_retries.
  hso: fix a use after free condition
  net/natsemi: Fix module parameter permissions
  XFRM: Fix memory leak in xfrm_state_update
  sctp: Enforce retransmission limit during shutdown
  mac80211: fix TKIP replay vulnerability
  mac80211: fix ie memory allocation for scheduled scans
  ssb: fix init regression of hostmode PCI core
  rtlwifi: rtl8192cu: Add new USB ID for Netgear WNA1000M
  ath9k: Fix tx throughput drops for AR9003 chips with AES encryption
  carl9170: add NEC WL300NU-AG usbid
  cfg80211: fix deadlock with rfkill/sched_scan by adding new mutex
  ath5k: fix incorrect use of drvdata in PCI suspend/resume code
  ath5k: fix incorrect use of drvdata in sysfs code
  Bluetooth: Fix memory leak under page timeouts
  Bluetooth: Fix regression with incoming L2CAP connections
  Bluetooth: Fix hidp disconnect deadlocks and lost wakeup
  ...

1 files changed, 18 insertions, 2 deletions

diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index 534c2e5feb05..6e0f88295aaf 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -670,10 +670,19 @@ static void sctp_cmd_transport_on(sctp_cmd_seq_t *cmds,
         /* 8.3 Upon the receipt of the HEARTBEAT ACK, the sender of the
          * HEARTBEAT should clear the error counter of the destination
          * transport address to which the HEARTBEAT was sent.
-         * The association's overall error count is also cleared.
          */
         t->error_count = 0;
-        t->asoc->overall_error_count = 0;
+
+        /*
+         * Although RFC4960 specifies that the overall error count must
+         * be cleared when a HEARTBEAT ACK is received, we make an
+         * exception while in SHUTDOWN PENDING. If the peer keeps its
+         * window shut forever, we may never be able to transmit our
+         * outstanding data and rely on the retransmission limit be reached
+         * to shutdown the association.
+         */
+        if (t->asoc->state != SCTP_STATE_SHUTDOWN_PENDING)
+                t->asoc->overall_error_count = 0;
 
         /* Clear the hb_sent flag to signal that we had a good
          * acknowledgement.
@@ -1437,6 +1446,13 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
                         sctp_cmd_setup_t2(commands, asoc, cmd->obj.ptr);
                         break;
 
+                case SCTP_CMD_TIMER_START_ONCE:
+                        timer = &asoc->timers[cmd->obj.to];
+
+                        if (timer_pending(timer))
+                                break;
+                        /* fall through */
+
                 case SCTP_CMD_TIMER_START:
                         timer = &asoc->timers[cmd->obj.to];
                         timeout = asoc->timeouts[cmd->obj.to];