From c05a8bb001e24da956adf3146728e8ef5a028297 Mon Sep 17 00:00:00 2001
From: Nikos Mavrogiannopoulos <nmav@gnutls.org>
Date: Mon, 20 Jul 2009 20:39:22 +0000
Subject: only call gnutls_bye on non null gnutls session.

---
(limited to 'src/gnutls_io.c')

diff --git a/src/gnutls_io.c b/src/gnutls_io.c
index b06afd7..a8fd242 100644
--- a/src/gnutls_io.c
+++ b/src/gnutls_io.c
@@ -544,9 +544,11 @@ apr_status_t mgs_filter_output(ap_filter_t * f,
     while (!APR_BRIGADE_EMPTY(bb)) {
         apr_bucket *bucket = APR_BRIGADE_FIRST(bb);
         if (AP_BUCKET_IS_EOC(bucket)) {
-            do {
-                ret = gnutls_bye( ctxt->session, GNUTLS_SHUT_WR);
-            } while(ret == GNUTLS_E_INTERRUPTED || ret == GNUTLS_E_AGAIN);
+            if (ctxt->session != NULL) {
+                do {
+                    ret = gnutls_bye( ctxt->session, GNUTLS_SHUT_WR);
+                } while(ret == GNUTLS_E_INTERRUPTED || ret == GNUTLS_E_AGAIN);
+            }
 
             apr_bucket_copy(bucket, &e);
             APR_BRIGADE_INSERT_TAIL(ctxt->output_bb, e);
--
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