[NET_SCHED]: Propagate nla_parse return value

nla_parse() returns more detailed errno codes, propagate them back on
error.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

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;