From 724b9e1d75ab3401aaa081bd4efb440c1b3509db Mon Sep 17 00:00:00 2001
From: Hiroaki SHIMODA <shimoda.hiroaki@gmail.com>
Date: Wed, 26 Feb 2014 21:43:42 +0900
Subject: [PATCH] sch_tbf: Fix potential memory leak in tbf_change().

The allocated child qdisc is not freed in error conditions.
Defer the allocation after user configuration turns out to be
valid and acceptable.

Fixes: cc106e441a63b ("net: sched: tbf: fix the calculation of max_size")
Signed-off-by: Hiroaki SHIMODA <shimoda.hiroaki@gmail.com>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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