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 ea17cbe..28de430 100644 (file)
--- a/net/sched/sch_mqprio.c
+++ b/net/sched/sch_mqprio.c
@@ -14,6 +14,7 @@
 #include <linux/string.h>
 #include <linux/errno.h>
 #include <linux/skbuff.h>
+#include <linux/module.h>
 #include <net/netlink.h>
 #include <net/pkt_sched.h>
 #include <net/sch_generic.h>
@@ -106,7 +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);