Ensure to unset the iof "active" flag after the libevent read callback

fires (it's already reset once we queue up the read event again).  Failure
to unset the active flag would cause other logic to not queue up the
read event again, because it thought the read event was still active).

This commit was SVN r26311.

orte/mca/iof/hnp/iof_hnp_read.c

@@ -9,7 +9,7 @@
  *                         University of Stuttgart.  All rights reserved.
  * Copyright (c) 2004-2005 The Regents of the University of California.
  *                         All rights reserved.
- * Copyright (c) 2007      Cisco Systems, Inc.  All rights reserved.
+ * Copyright (c) 2007-2012 Cisco Systems, Inc.  All rights reserved.
  * Copyright (c) 2011-2012 Los Alamos National Security, LLC.  All rights
  *                         reserved. 
  * $COPYRIGHT$
@@ -137,6 +137,10 @@ void orte_iof_hnp_read_local_handler(int fd, short event, void *cbdata)
     
     /* is this read from our stdin? */
     if (ORTE_IOF_STDIN & rev->tag) {
+        /* The event has fired, so it's no longer active until we
+           re-add it */
+        mca_iof_hnp_component.stdinev->active = false;
+    
         /* if job termination has been ordered, just ignore the
          * data and delete the read event
          */
@@ -171,11 +175,9 @@ void orte_iof_hnp_read_local_handler(int fd, short event, void *cbdata)
                 if (NULL != sink->wev) {
                     if (ORTE_IOF_MAX_INPUT_BUFFERS < orte_iof_base_write_output(&rev->name, rev->tag, data, numbytes, sink->wev)) {
                         /* getting too backed up - stop the read event for now if it is still active */
-                        if (mca_iof_hnp_component.stdinev->active) {
-                            OPAL_OUTPUT_VERBOSE((1, orte_iof_base.iof_output,
-                                                 "buffer backed up - holding"));
-                            mca_iof_hnp_component.stdinev->active = false;
-                        }
+
+                        OPAL_OUTPUT_VERBOSE((1, orte_iof_base.iof_output,
+                                             "buffer backed up - holding"));
                         OPAL_THREAD_UNLOCK(&mca_iof_hnp_component.lock);
                         return;
                     }