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-rw-r--r--src/plugins/acl/acl.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/plugins/acl/acl.c b/src/plugins/acl/acl.c
index a0057cd076b..645c6c94a2c 100644
--- 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);