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-rw-r--r--net/sched/sch_red.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c
index dcf6afc..3dcd493f4 100644
--- a/net/sched/sch_red.c
+++ b/net/sched/sch_red.c
@@ -201,6 +201,11 @@ static struct Qdisc *red_create_dflt(struct Qdisc *sch, u32 limit)
return NULL;
}
+static const struct nla_policy red_policy[TCA_RED_MAX + 1] = {
+ [TCA_RED_PARMS] = { .len = sizeof(struct tc_red_qopt) },
+ [TCA_RED_STAB] = { .len = RED_STAB_SIZE },
+};
+
static int red_change(struct Qdisc *sch, struct nlattr *opt)
{
struct red_sched_data *q = qdisc_priv(sch);
@@ -212,14 +217,12 @@ static int red_change(struct Qdisc *sch, struct nlattr *opt)
if (opt == NULL)
return -EINVAL;
- err = nla_parse_nested(tb, TCA_RED_MAX, opt, NULL);
+ err = nla_parse_nested(tb, TCA_RED_MAX, opt, red_policy);
if (err < 0)
return err;
if (tb[TCA_RED_PARMS] == NULL ||
- nla_len(tb[TCA_RED_PARMS]) < sizeof(*ctl) ||
- tb[TCA_RED_STAB] == NULL ||
- nla_len(tb[TCA_RED_STAB]) < RED_STAB_SIZE)
+ tb[TCA_RED_STAB] == NULL)
return -EINVAL;
ctl = nla_data(tb[TCA_RED_PARMS]);
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