Commit 21641c2e authored by WANG Cong's avatar WANG Cong Committed by David S. Miller
Browse files

net_sched: check NULL on error path in route4_change()

On error path in route4_change(), 'f' could be NULL,
so we should check NULL before calling tcf_exts_destroy().

Fixes: b9a24bb7

 ("net_sched: properly handle failure case of tcf_exts_init()")
Reported-by: default avatarkbuild test robot <fengguang.wu@intel.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: default avatarCong Wang <xiyou.wangcong@gmail.com>
Acked-by: default avatarJamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d6989d4b
......@@ -559,7 +559,8 @@ static int route4_change(struct net *net, struct sk_buff *in_skb,
return 0;
errout:
tcf_exts_destroy(&f->exts);
if (f)
tcf_exts_destroy(&f->exts);
kfree(f);
return err;
}
......
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