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net: sched: fix error path in tcf_proto_create() when modules are not configured 

In case modules are not configured, error out when tp->ops is null
and prevent later null pointer dereference.

Fixes: 33a48927c1 ("sched: push TC filter protocol creation into a separate function")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2018-05-11 17:45:32 +02:00 committed by David S. Miller
parent f4d641a228
commit d68d75fdc3
1 changed files with 1 additions and 1 deletions
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2
net/sched/cls_api.c
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@ -152,8 +152,8 @@ static struct tcf_proto *tcf_proto_create(const char *kind, u32 protocol,
NL_SET_ERR_MSG(extack, "TC classifier not found");
err = -ENOENT;
}
goto errout;
#endif
goto errout;
}
tp->classify = tp->ops->classify;
tp->protocol = protocol;