[GNUnet-SVN] [gnunet] 01/02: handle case of MQM being already NULL

[gnunet]

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grothoff pushed a commit to branch master
in repository gnunet.

commit b25a64c10b76c48ce1eda6bc923ff40a82f0a673
Author: Christian Grothoff <address@hidden>
AuthorDate: Mon Jan 23 14:57:36 2017 +0100

    handle case of MQM being already NULL
---
 src/cadet/gnunet-service-cadet-new_connection.c | 9 ++++++---
 src/cadet/gnunet-service-cadet-new_core.c       | 3 +++
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/cadet/gnunet-service-cadet-new_connection.c 
b/src/cadet/gnunet-service-cadet-new_connection.c
index c44511400..b365599bf 100644
--- a/src/cadet/gnunet-service-cadet-new_connection.c
+++ b/src/cadet/gnunet-service-cadet-new_connection.c
@@ -173,9 +173,12 @@ GCC_destroy (struct CadetConnection *cc)
                          GNUNET_MESSAGE_TYPE_CADET_CONNECTION_DESTROY);
     destroy_msg->cid = cc->cid;
   }
-  GCP_request_mq_cancel (cc->mq_man,
-                         env);
-  cc->mq_man = NULL;
+  if (NULL != cc->mq_man)
+  {
+    GCP_request_mq_cancel (cc->mq_man,
+                           env);
+    cc->mq_man = NULL;
+  }
   if (NULL != cc->task)
   {
     GNUNET_SCHEDULER_cancel (cc->task);
diff --git a/src/cadet/gnunet-service-cadet-new_core.c 
b/src/cadet/gnunet-service-cadet-new_core.c
index 1e35a5102..8de780ce0 100644
--- a/src/cadet/gnunet-service-cadet-new_core.c
+++ b/src/cadet/gnunet-service-cadet-new_core.c
@@ -312,6 +312,8 @@ send_broken (struct RouteDirection *target,
   struct GNUNET_MQ_Envelope *env;
   struct GNUNET_CADET_ConnectionBrokenMessage *bm;
 
+  if (NULL == target->mqm)
+    return; /* Can't send notification, connection is down! */
   LOG (GNUNET_ERROR_TYPE_DEBUG,
        "Notifying %s about BROKEN route at %s-%s of connection %s\n",
        GCP_2s (target->hop),
@@ -326,6 +328,7 @@ send_broken (struct RouteDirection *target,
     bm->peer1 = *peer1;
   if (NULL != peer2)
     bm->peer2 = *peer2;
+
   GCP_request_mq_cancel (target->mqm,
                          env);
   target->mqm = NULL;

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