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authorDan Carpenter <dan.carpenter@oracle.com>2015-01-21 12:22:35 +0300
committerDavid S. Miller <davem@davemloft.net>2015-01-25 23:32:49 -0800
commit1b846f9282c0781f8ecf90e355008d94a0b973dd (patch)
treeafdeb123e3803cc84613ca895a8a386b7e44ec16 /net/bridge
parent5c66cfe0780d02af6c1c64fdb655a85921855bee (diff)
downloadop-kernel-dev-1b846f9282c0781f8ecf90e355008d94a0b973dd.zip
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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 <dan.carpenter@oracle.com> Acked-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge')
-rw-r--r--net/bridge/br_netlink.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 528cf27..3875ea5 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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