Commit 
954415e33ed6cfa932c13e8c2460bd05e50723b5 ("[PKT_SCHED] ematch:
tcf_em_destroy robustness") removed a cast on em->data when
passing it to kfree(), but em->data is an integer type that can
hold pointers as well as other values so the cast is necessary.
Signed-off-by: David S. Miller <davem@davemloft.net>
                        if (em->ops->destroy)
                                em->ops->destroy(tp, em);
                        else if (!tcf_em_is_simple(em))
-                               kfree(em->data);
+                               kfree((void *) em->data);
                        module_put(em->ops->owner);
                }
        }