diff options
| author | Thomas Graf <tgraf@redhat.com> | 2011-12-22 02:05:07 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-12-22 22:34:56 -0500 |
| commit | 7838f2ce36b6ab5c13ef20b1857e3bbd567f1759 (patch) | |
| tree | 4a84e53445817547adb299b25c54e613f76a8980 /net/sched/sch_mqprio.c | |
| parent | a13861a28b90541aa207532d237e7a940f1b1c7b (diff) | |
| download | linux-7838f2ce36b6ab5c13ef20b1857e3bbd567f1759.tar.bz2 | |
mqprio: Avoid panic if no options are provided
Userspace may not provide TCA_OPTIONS, in fact tc currently does
so not do so if no arguments are specified on the command line.
Return EINVAL instead of panicing.
Signed-off-by: Thomas Graf <tgraf@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_mqprio.c')
| -rw-r--r-- | net/sched/sch_mqprio.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sched/sch_mqprio.c b/net/sched/sch_mqprio.c index f88256cbacbf..28de43092330 100644 --- a/net/sched/sch_mqprio.c +++ b/net/sched/sch_mqprio.c @@ -107,7 +107,7 @@ static int mqprio_init(struct Qdisc *sch, struct nlattr *opt) if (!netif_is_multiqueue(dev)) return -EOPNOTSUPP; - if (nla_len(opt) < sizeof(*qopt)) + if (!opt || nla_len(opt) < sizeof(*qopt)) return -EINVAL; qopt = nla_data(opt); |