work around se driver bug

diff --git a/modules/ppp_ahdlc.c b/modules/ppp_ahdlc.c
index c1853bbb9e437cd4be3e7f99109864a9582307c8..cfde35d296ddac3e3f7d25c231005549b9bd54c5 100644 (file)
--- a/modules/ppp_ahdlc.c
+++ b/modules/ppp_ahdlc.c
@@ -24,7 +24,7 @@
  * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
  * OR MODIFICATIONS.
  *
- * $Id: ppp_ahdlc.c,v 1.7 1998/03/24 23:52:35 paulus Exp $
+ * $Id: ppp_ahdlc.c,v 1.8 1998/05/04 06:11:50 paulus Exp $
  */
 
 /*
@@ -395,12 +395,14 @@ stuff_frame(q, mp)
        goto bomb;
 
     /*
-     * Put in an initial flag for now.  We'll remove it later
-     * if we decide we don't need it.
+     * Put in an initial flag, unless the serial driver currently has
+     * packets still to be transmitted in its queue.
      */
     dp = op->b_wptr;
-    *dp++ = PPP_FLAG;
-    --olen;
+    if (qsize(q->q_next) == 0) {
+       *dp++ = PPP_FLAG;
+       --olen;
+    }
 
     /*
      * For LCP packets with code values between 1 and 7 (Conf-Req
@@ -512,12 +514,6 @@ stuff_frame(q, mp)
     *dp++ = PPP_FLAG;
     op->b_wptr = dp;
 
-    /*
-     * Remove the initial flag, if possible.
-     */
-    if (qsize(q->q_next) > 0)
-       ++omsg->b_rptr;
-
     /*
      * Update statistics.
      */