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authorYotam Gigi <yotamg@mellanox.com>2017-01-03 19:20:24 +0200
committerDavid S. Miller <davem@davemloft.net>2017-01-03 18:58:27 -0500
commitec2507d2a3060a970fa314556891828cfd60093e (patch)
tree86789e6f428f77111db251c0c3f4709ec0bb85d1 /net
parentMerge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue (diff)
downloadlinux-dev-ec2507d2a3060a970fa314556891828cfd60093e.tar.xz
linux-dev-ec2507d2a3060a970fa314556891828cfd60093e.zip
net/sched: cls_matchall: Fix error path
Fix several error paths in matchall: - Release reference to actions in case the hardware fails offloading (relevant to skip_sw only) - Fix error path in case tcf_exts initialization/validation fail Fixes: bf3994d2ed31 ("net/sched: introduce Match-all classifier") Signed-off-by: Yotam Gigi <yotamg@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/sched/cls_matchall.c22
1 files changed, 16 insertions, 6 deletions
diff --git a/net/sched/cls_matchall.c b/net/sched/cls_matchall.c
index f935429bd5ef..fcecf5aac666 100644
--- a/net/sched/cls_matchall.c
+++ b/net/sched/cls_matchall.c
@@ -141,10 +141,12 @@ static int mall_set_parms(struct net *net, struct tcf_proto *tp,
struct tcf_exts e;
int err;
- tcf_exts_init(&e, TCA_MATCHALL_ACT, 0);
+ err = tcf_exts_init(&e, TCA_MATCHALL_ACT, 0);
+ if (err)
+ return err;
err = tcf_exts_validate(net, tp, tb, est, &e, ovr);
if (err < 0)
- return err;
+ goto errout;
if (tb[TCA_MATCHALL_CLASSID]) {
f->res.classid = nla_get_u32(tb[TCA_MATCHALL_CLASSID]);
@@ -154,6 +156,9 @@ static int mall_set_parms(struct net *net, struct tcf_proto *tp,
tcf_exts_change(tp, &f->exts, &e);
return 0;
+errout:
+ tcf_exts_destroy(&e);
+ return err;
}
static int mall_change(struct net *net, struct sk_buff *in_skb,
@@ -193,7 +198,9 @@ static int mall_change(struct net *net, struct sk_buff *in_skb,
if (!f)
return -ENOBUFS;
- tcf_exts_init(&f->exts, TCA_MATCHALL_ACT, 0);
+ err = tcf_exts_init(&f->exts, TCA_MATCHALL_ACT, 0);
+ if (err)
+ goto err_exts_init;
if (!handle)
handle = 1;
@@ -202,13 +209,13 @@ static int mall_change(struct net *net, struct sk_buff *in_skb,
err = mall_set_parms(net, tp, f, base, tb, tca[TCA_RATE], ovr);
if (err)
- goto errout;
+ goto err_set_parms;
if (tc_should_offload(dev, tp, flags)) {
err = mall_replace_hw_filter(tp, f, (unsigned long) f);
if (err) {
if (tc_skip_sw(flags))
- goto errout;
+ goto err_replace_hw_filter;
else
err = 0;
}
@@ -219,7 +226,10 @@ static int mall_change(struct net *net, struct sk_buff *in_skb,
return 0;
-errout:
+err_replace_hw_filter:
+err_set_parms:
+ tcf_exts_destroy(&f->exts);
+err_exts_init:
kfree(f);
return err;
}