diff options
Diffstat (limited to 'net/sched/sch_htb.c')
| -rw-r--r-- | net/sched/sch_htb.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index 3b3ff641b6d7..512df9a0a242 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -997,9 +997,17 @@ static int htb_init(struct Qdisc *sch, struct nlattr *opt) struct htb_sched *q = qdisc_priv(sch); struct nlattr *tb[TCA_HTB_INIT + 1]; struct tc_htb_glob *gopt; + int err; int i; - if (!opt || nla_parse_nested(tb, TCA_HTB_INIT, opt, NULL) || - tb[TCA_HTB_INIT] == NULL || + + if (!opt) + return -EINVAL; + + err = nla_parse_nested(tb, TCA_HTB_INIT, opt, NULL); + if (err < 0) + return err; + + if (tb[TCA_HTB_INIT] == NULL || nla_len(tb[TCA_HTB_INIT]) < sizeof(*gopt)) { printk(KERN_ERR "HTB: hey probably you have bad tc tool ?\n"); return -EINVAL; @@ -1302,8 +1310,15 @@ static int htb_change_class(struct Qdisc *sch, u32 classid, struct tc_htb_opt *hopt; /* extract all subattrs from opt attr */ - if (!opt || nla_parse_nested(tb, TCA_HTB_RTAB, opt, NULL) || - tb[TCA_HTB_PARMS] == NULL || + if (!opt) + goto failure; + + err = nla_parse_nested(tb, TCA_HTB_RTAB, opt, NULL); + if (err < 0) + goto failure; + + err = -EINVAL; + if (tb[TCA_HTB_PARMS] == NULL || nla_len(tb[TCA_HTB_PARMS]) < sizeof(*hopt)) goto failure; |