diff options
Diffstat (limited to 'net/sched/sch_gred.c')
| -rw-r--r-- | net/sched/sch_gred.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c index 6b784838a534..365c7d8b17ab 100644 --- a/net/sched/sch_gred.c +++ b/net/sched/sch_gred.c @@ -430,12 +430,16 @@ static int gred_change(struct Qdisc *sch, struct nlattr *opt) struct gred_sched *table = qdisc_priv(sch); struct tc_gred_qopt *ctl; struct nlattr *tb[TCA_GRED_MAX + 1]; - int err = -EINVAL, prio = GRED_DEF_PRIO; + int err, prio = GRED_DEF_PRIO; u8 *stab; - if (opt == NULL || nla_parse_nested(tb, TCA_GRED_MAX, opt, NULL)) + if (opt == NULL) return -EINVAL; + err = nla_parse_nested(tb, TCA_GRED_MAX, opt, NULL); + if (err < 0) + return err; + if (tb[TCA_GRED_PARMS] == NULL && tb[TCA_GRED_STAB] == NULL) return gred_change_table_def(sch, opt); @@ -445,6 +449,7 @@ static int gred_change(struct Qdisc *sch, struct nlattr *opt) nla_len(tb[TCA_GRED_STAB]) < 256) return -EINVAL; + err = -EINVAL; ctl = nla_data(tb[TCA_GRED_PARMS]); stab = nla_data(tb[TCA_GRED_STAB]); @@ -489,10 +494,15 @@ errout: static int gred_init(struct Qdisc *sch, struct nlattr *opt) { struct nlattr *tb[TCA_GRED_MAX + 1]; + int err; - if (opt == NULL || nla_parse_nested(tb, TCA_GRED_MAX, opt, NULL)) + if (opt == NULL) return -EINVAL; + err = nla_parse_nested(tb, TCA_GRED_MAX, opt, NULL); + if (err < 0) + return err; + if (tb[TCA_GRED_PARMS] || tb[TCA_GRED_STAB]) return -EINVAL; |