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| author |   Patrick McHardy <kaber@trash.net> | 2008-01-23 20:33:32 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2008-01-28 15:11:18 -0800 |
| commit | cee63723b358e594225e812d6e14a2a0abfd5c88 (patch) | |
| tree | 847f929e0f445cca8cdf55d7c17a56b0d0f2ec68 /net/sched/sch_htb.c | |
| parent | [NET_SCHED]: act_api: use PTR_ERR in tcf_action_init/tcf_action_get (diff) | |
| download | linux-dev-cee63723b358e594225e812d6e14a2a0abfd5c88.tar.xz linux-dev-cee63723b358e594225e812d6e14a2a0abfd5c88.zip | |
[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>
Diffstat (limited to '')
| -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; |