From 1b846f9282c0781f8ecf90e355008d94a0b973dd Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 21 Jan 2015 12:22:35 +0300 Subject: [PATCH] bridge: simplify br_getlink() a bit Static checkers complain that we should maybe set "ret" before we do the "goto out;". They interpret the NULL return from br_port_get_rtnl() as a failure and forgetting to set the error code is a common bug in this situation. The code is confusing but it's actually correct. We are returning zero deliberately. Let's re-write it a bit to be more clear. Signed-off-by: Dan Carpenter Acked-by: Stephen Hemminger Signed-off-by: David S. Miller --- net/bridge/br_netlink.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c index 528cf2790a5f..3875ea51f6fe 100644 --- a/net/bridge/br_netlink.c +++ b/net/bridge/br_netlink.c @@ -311,17 +311,14 @@ errout: int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, u32 filter_mask) { - int err = 0; struct net_bridge_port *port = br_port_get_rtnl(dev); if (!port && !(filter_mask & RTEXT_FILTER_BRVLAN) && !(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) - goto out; + return 0; - err = br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, NLM_F_MULTI, - filter_mask, dev); -out: - return err; + return br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, NLM_F_MULTI, + filter_mask, dev); } static int br_vlan_info(struct net_bridge *br, struct net_bridge_port *p, -- 2.20.1