sch_sfb: Fix missing NULL check
Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=44461 Signed-off-by: Alan Cox <alan@linux.intel.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -570,6 +570,8 @@ static int sfb_dump(struct Qdisc *sch, struct sk_buff *skb)
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sch->qstats.backlog = q->qdisc->qstats.backlog;
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opts = nla_nest_start(skb, TCA_OPTIONS);
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if (opts == NULL)
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goto nla_put_failure;
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if (nla_put(skb, TCA_SFB_PARMS, sizeof(opt), &opt))
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goto nla_put_failure;
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return nla_nest_end(skb, opts);
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