tipc: unlock in error path

[ Upstream commit b53ce3e7d407aa4196877a48b8601181162ab158 ]

tipc_bcast_unlock need to be unlocked in error path.

Signed-off-by: Insu Yun <wuninsu@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index 9dc239dfe19211f2a6367f9581bf79527f73af31..92e367a0a5cecc32da7779eedea2e0fc417273b0 100644 (file)
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -399,8 +399,10 @@ int tipc_nl_add_bc_link(struct net *net, struct tipc_nl_msg *msg)
 
        hdr = genlmsg_put(msg->skb, msg->portid, msg->seq, &tipc_genl_family,
                          NLM_F_MULTI, TIPC_NL_LINK_GET);
-       if (!hdr)
+       if (!hdr) {
+               tipc_bcast_unlock(net);
                return -EMSGSIZE;
+       }
 
        attrs = nla_nest_start(msg->skb, TIPC_NLA_LINK);
        if (!attrs)