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 <dan.carpenter@xxxxxxxxxx>
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 528cf27..3875ea51 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,
--
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