net: sched: cls_matchall: cleanup flow_action before deallocating

Recent rtnl lock removal patch changed flow_action infra to require proper
cleanup besides simple memory deallocation. However, matchall classifier
was not updated to call tc_cleanup_flow_action(). Add proper cleanup to
mall_replace_hw_filter() and mall_reoffload().

Fixes: 5a6ff4b13d59 ("net: sched: take reference to action dev before calling offloads")
Reported-by: Ido Schimmel <[e-mail]>
Tested-by: Ido Schimmel <[e-mail]>
Signed-off-by: Vlad Buslov <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

net/sched/cls_matchall.c

···
 
 	err = tc_setup_cb_add(block, tp, TC_SETUP_CLSMATCHALL, &cls_mall,
 			      skip_sw, &head->flags, &head->in_hw_count, true);
+	tc_cleanup_flow_action(&cls_mall.rule->action);
 	kfree(cls_mall.rule);
 
 	if (err) {
···
 	err = tc_setup_cb_reoffload(block, tp, add, cb, TC_SETUP_CLSMATCHALL,
 				    &cls_mall, cb_priv, &head->flags,
 				    &head->in_hw_count);
+	tc_cleanup_flow_action(&cls_mall.rule->action);
 	kfree(cls_mall.rule);
 
 	if (err)