vcl: fix ldp shared listener bitmap leak

Type: fix

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Id1e273bf80c1cc687ce7e5ea3b8cc6a3ec3862f9
diff --git a/src/vcl/vcl_locked.c b/src/vcl/vcl_locked.c
index 6027fd1..5ec553e 100644
--- a/src/vcl/vcl_locked.c
+++ b/src/vcl/vcl_locked.c
@@ -619,7 +619,8 @@
   vls_shd = vls_shared_data_get (vls->shared_data_index);
 
   clib_spinlock_lock (&vls_shd->lock);
-  clib_bitmap_set (vls_shd->listeners, wrk_index, is_active);
+  vls_shd->listeners =
+    clib_bitmap_set (vls_shd->listeners, wrk_index, is_active);
   clib_spinlock_unlock (&vls_shd->lock);
 
   vls_shared_data_pool_runlock ();