net: sched: integer overflow fix

[pandora-kernel.git] / net / sched / sch_mqprio.c

diff --git a/net/sched/sch_mqprio.c b/net/sched/sch_mqprio.c
index f88256c..28de430 100644 (file)
--- 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);