survive NULL

1 files changed, 12 insertions, 8 deletions

diff --git a/src/fs/fs_namespace.c b/src/fs/fs_namespace.c
index 8e13df9bc..903cb07f3 100644
--- a/src/fs/fs_namespace.c
+++ b/src/fs/fs_namespace.c
@@ -361,7 +361,8 @@ advertisement_cont (void *cls,
                                          &do_disconnect,
                                          ac->dsh,
                                          GNUNET_SCHEDULER_REASON_PREREQ_DONE);
-      ac->cont (ac->cont_cls, NULL, msg);
+      if (ac->cont != NULL)
+        ac->cont (ac->cont_cls, NULL, msg);
       GNUNET_FS_uri_destroy (ac->ksk_uri);
       GNUNET_free (ac->pt);
       GNUNET_free (ac->nb);
@@ -376,7 +377,8 @@ advertisement_cont (void *cls,
                                          &do_disconnect,
                                          ac->dsh,
                                          GNUNET_SCHEDULER_REASON_PREREQ_DONE);
-      ac->cont (ac->cont_cls, ac->ksk_uri, NULL);
+      if (ac->cont != NULL)
+        ac->cont (ac->cont_cls, ac->ksk_uri, NULL);
       GNUNET_FS_uri_destroy (ac->ksk_uri);
       GNUNET_free (ac->pt);
       GNUNET_free (ac->nb);
@@ -775,9 +777,10 @@ sb_put_cont (void *cls,
     }
   if (GNUNET_OK != success)
     {
-      psc->cont (psc->cont_cls,
-                 NULL,
-                 msg);
+      if (psc->cont != NULL)
+        psc->cont (psc->cont_cls,
+                   NULL,
+                   msg);
     }
   else
     {
@@ -804,9 +807,10 @@ sb_put_cont (void *cls,
           psc->nsn = NULL;
           write_update_information_graph (psc->namespace);
         }
-      psc->cont (psc->cont_cls,
-                 psc->uri,
-                 NULL);
+      if (psc->cont != NULL)
+        psc->cont (psc->cont_cls,
+                   psc->uri,
+                   NULL);
     }
   GNUNET_FS_namespace_delete (psc->namespace,
                               GNUNET_NO);