neighbour: delete redundant judgment statements

[ Upstream commit c25bdd2ac8cf7da70a226f1a66cdce7af15ff86f ]

The initial value of err is -ENOBUFS, and err is guaranteed to be
less than 0 before all goto errout. Therefore, on the error path
of errout, there is no need to repeatedly judge that err is less than 0,
and delete redundant judgments to make the code more concise.

Signed-off-by: Li Zetao <lizetao1@huawei.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: becbd5850c03 ("neighbour: use RCU protection in __neigh_notify()")
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 6f3bd1a4ec8ca64106613caf9fb184bd637ff871..7fffbe0424342d850ecc4135c960c1595f4218ea 100644 (file)
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -3387,8 +3387,7 @@ static void __neigh_notify(struct neighbour *n, int type, int flags,
        rtnl_notify(skb, net, 0, RTNLGRP_NEIGH, NULL, GFP_ATOMIC);
        return;
 errout:
-       if (err < 0)
-               rtnl_set_sk_err(net, RTNLGRP_NEIGH, err);
+       rtnl_set_sk_err(net, RTNLGRP_NEIGH, err);
 }
 
 void neigh_app_ns(struct neighbour *n)