acl-plugin: don't attempt to delete the ACLs on interface deletion if ACL plugin...

With the addition of the own heap, the delete routines called from interface deletion
callback may attempt to initialize the ACL plugin heap. This is obviously not
a desirable condition - so, return early from the callback if the ACL plugin
heap has not been initialized yet - there is for sure nothing to clean up.

Change-Id: I08a6ae725294016ff5824189ade91c288e2c473b
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>

diff --git a/src/plugins/acl/acl.c b/src/plugins/acl/acl.c
index a0057cd..645c6c9 100644 (file)
--- a/src/plugins/acl/acl.c
+++ b/src/plugins/acl/acl.c
@@ -1945,6 +1945,10 @@ static clib_error_t *
 acl_sw_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add)
 {
   acl_main_t *am = &acl_main;
+  if (0 == am->acl_mheap) {
+    /* ACL heap is not initialized, so definitely nothing to do. */
+    return 0;
+  }
   if (0 == is_add) {
     vlib_process_signal_event (am->vlib_main, am->fa_cleaner_node_index,
                                ACL_FA_CLEANER_DELETE_BY_SW_IF_INDEX, sw_if_index);