Hello, It looks like the kfree on line 1573 should be moved down a few lines.
julia ---------- Forwarded message ---------- Date: Sat, 1 Dec 2018 11:11:55 +0800 From: kbuild test robot <l...@intel.com> To: kbu...@01.org Cc: Julia Lawall <julia.law...@lip6.fr> Subject: Re: [PATCH net-next, v4 01/12] flow_offload: add flow_rule and flow_match structures and use them CC: kbuild-...@01.org In-Reply-To: <20181129022231.2740-2-pa...@netfilter.org> References: <20181129022231.2740-2-pa...@netfilter.org> TO: Pablo Neira Ayuso <pa...@netfilter.org> CC: netdev@vger.kernel.org Hi Pablo, I love your patch! Perhaps something to improve: [auto build test WARNING on net-next/master] [also build test WARNING on next-20181130] [cannot apply to v4.20-rc4] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Pablo-Neira-Ayuso/add-flow_rule-infrastructure/20181130-204709 :::::: branch date: 14 hours ago :::::: commit date: 14 hours ago >> net/sched/cls_flower.c:1586:7-9: ERROR: reference preceded by free on line >> 1573 # https://github.com/0day-ci/linux/commit/012ba7afb48db31be34a84d5fe82c4ceb409fd2d git remote add linux-review https://github.com/0day-ci/linux git remote update linux-review git checkout 012ba7afb48db31be34a84d5fe82c4ceb409fd2d vim +1586 net/sched/cls_flower.c 34738452 Jiri Pirko 2018-07-23 1544 b95ec7eb Jiri Pirko 2018-07-23 1545 static void *fl_tmplt_create(struct net *net, struct tcf_chain *chain, b95ec7eb Jiri Pirko 2018-07-23 1546 struct nlattr **tca, b95ec7eb Jiri Pirko 2018-07-23 1547 struct netlink_ext_ack *extack) b95ec7eb Jiri Pirko 2018-07-23 1548 { b95ec7eb Jiri Pirko 2018-07-23 1549 struct fl_flow_tmplt *tmplt; b95ec7eb Jiri Pirko 2018-07-23 1550 struct nlattr **tb; b95ec7eb Jiri Pirko 2018-07-23 1551 int err; b95ec7eb Jiri Pirko 2018-07-23 1552 b95ec7eb Jiri Pirko 2018-07-23 1553 if (!tca[TCA_OPTIONS]) b95ec7eb Jiri Pirko 2018-07-23 1554 return ERR_PTR(-EINVAL); b95ec7eb Jiri Pirko 2018-07-23 1555 b95ec7eb Jiri Pirko 2018-07-23 1556 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL); b95ec7eb Jiri Pirko 2018-07-23 1557 if (!tb) b95ec7eb Jiri Pirko 2018-07-23 1558 return ERR_PTR(-ENOBUFS); b95ec7eb Jiri Pirko 2018-07-23 1559 err = nla_parse_nested(tb, TCA_FLOWER_MAX, tca[TCA_OPTIONS], b95ec7eb Jiri Pirko 2018-07-23 1560 fl_policy, NULL); b95ec7eb Jiri Pirko 2018-07-23 1561 if (err) b95ec7eb Jiri Pirko 2018-07-23 1562 goto errout_tb; b95ec7eb Jiri Pirko 2018-07-23 1563 b95ec7eb Jiri Pirko 2018-07-23 1564 tmplt = kzalloc(sizeof(*tmplt), GFP_KERNEL); 1cbc36a5 Dan Carpenter 2018-08-03 1565 if (!tmplt) { 1cbc36a5 Dan Carpenter 2018-08-03 1566 err = -ENOMEM; b95ec7eb Jiri Pirko 2018-07-23 1567 goto errout_tb; 1cbc36a5 Dan Carpenter 2018-08-03 1568 } b95ec7eb Jiri Pirko 2018-07-23 1569 tmplt->chain = chain; b95ec7eb Jiri Pirko 2018-07-23 1570 err = fl_set_key(net, tb, &tmplt->dummy_key, &tmplt->mask, extack); b95ec7eb Jiri Pirko 2018-07-23 1571 if (err) b95ec7eb Jiri Pirko 2018-07-23 1572 goto errout_tmplt; b95ec7eb Jiri Pirko 2018-07-23 @1573 kfree(tb); b95ec7eb Jiri Pirko 2018-07-23 1574 b95ec7eb Jiri Pirko 2018-07-23 1575 fl_init_dissector(&tmplt->dissector, &tmplt->mask); b95ec7eb Jiri Pirko 2018-07-23 1576 012ba7af Pablo Neira Ayuso 2018-11-29 1577 err = fl_hw_create_tmplt(chain, tmplt); 012ba7af Pablo Neira Ayuso 2018-11-29 1578 if (err) 012ba7af Pablo Neira Ayuso 2018-11-29 1579 goto errout_tmplt; 34738452 Jiri Pirko 2018-07-23 1580 b95ec7eb Jiri Pirko 2018-07-23 1581 return tmplt; b95ec7eb Jiri Pirko 2018-07-23 1582 b95ec7eb Jiri Pirko 2018-07-23 1583 errout_tmplt: b95ec7eb Jiri Pirko 2018-07-23 1584 kfree(tmplt); b95ec7eb Jiri Pirko 2018-07-23 1585 errout_tb: b95ec7eb Jiri Pirko 2018-07-23 @1586 kfree(tb); b95ec7eb Jiri Pirko 2018-07-23 1587 return ERR_PTR(err); b95ec7eb Jiri Pirko 2018-07-23 1588 } b95ec7eb Jiri Pirko 2018-07-23 1589 :::::: The code at line 1586 was first introduced by commit :::::: b95ec7eb3b4d2f158dd15c912cf670b546f09571 net: sched: cls_flower: implement chain templates :::::: TO: Jiri Pirko <j...@mellanox.com> :::::: CC: David S. Miller <da...@davemloft.net> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation