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Diffstat (limited to 'net/sched/sch_hfsc.c')
-rw-r--r--net/sched/sch_hfsc.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index 4e6a164d3058..fcb4826158d6 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -997,10 +997,15 @@ hfsc_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
struct nlattr *tb[TCA_HFSC_MAX + 1];
struct tc_service_curve *rsc = NULL, *fsc = NULL, *usc = NULL;
u64 cur_time;
+ int err;
- if (opt == NULL || nla_parse_nested(tb, TCA_HFSC_MAX, opt, NULL))
+ if (opt == NULL)
return -EINVAL;
+ err = nla_parse_nested(tb, TCA_HFSC_MAX, opt, NULL);
+ if (err < 0)
+ return err;
+
if (tb[TCA_HFSC_RSC]) {
if (nla_len(tb[TCA_HFSC_RSC]) < sizeof(*rsc))
return -EINVAL;