[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>
diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c
index 6c4ad7e..f9b1543 100644
--- a/net/sched/sch_tbf.c
+++ b/net/sched/sch_tbf.c
@@ -272,7 +272,7 @@
static int tbf_change(struct Qdisc* sch, struct nlattr *opt)
{
- int err = -EINVAL;
+ int err;
struct tbf_sched_data *q = qdisc_priv(sch);
struct nlattr *tb[TCA_TBF_PTAB + 1];
struct tc_tbf_qopt *qopt;
@@ -281,8 +281,12 @@
struct Qdisc *child = NULL;
int max_size,n;
- if (nla_parse_nested(tb, TCA_TBF_PTAB, opt, NULL) ||
- tb[TCA_TBF_PARMS] == NULL ||
+ err = nla_parse_nested(tb, TCA_TBF_PTAB, opt, NULL);
+ if (err < 0)
+ return err;
+
+ err = -EINVAL;
+ if (tb[TCA_TBF_PARMS] == NULL ||
nla_len(tb[TCA_TBF_PARMS]) < sizeof(*qopt))
goto done;