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Diffstat (limited to 'net/sched/em_meta.c')
-rw-r--r--net/sched/em_meta.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c
index d9f487d813c..a1e5619b187 100644
--- a/net/sched/em_meta.c
+++ b/net/sched/em_meta.c
@@ -745,6 +745,10 @@ static inline int meta_is_supported(struct meta_value *val)
return (!meta_id(val) || meta_ops(val)->get);
}
+static const struct nla_policy meta_policy[TCA_EM_META_MAX + 1] = {
+ [TCA_EM_META_HDR] = { .len = sizeof(struct tcf_meta_hdr) },
+};
+
static int em_meta_change(struct tcf_proto *tp, void *data, int len,
struct tcf_ematch *m)
{
@@ -753,13 +757,12 @@ static int em_meta_change(struct tcf_proto *tp, void *data, int len,
struct tcf_meta_hdr *hdr;
struct meta_match *meta = NULL;
- err = nla_parse(tb, TCA_EM_META_MAX, data, len, NULL);
+ err = nla_parse(tb, TCA_EM_META_MAX, data, len, meta_policy);
if (err < 0)
goto errout;
err = -EINVAL;
- if (tb[TCA_EM_META_HDR] == NULL ||
- nla_len(tb[TCA_EM_META_HDR]) < sizeof(*hdr))
+ if (tb[TCA_EM_META_HDR] == NULL)
goto errout;
hdr = nla_data(tb[TCA_EM_META_HDR]);