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Commit 7838f2ce authored by Thomas Graf's avatar Thomas Graf Committed by David S. Miller
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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: default avatarThomas Graf <tgraf@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a13861a2

net/sched/sch_mqprio.c

+1 −1
Original line number Diff line number Diff line
@@ -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);