[PATCH net-next] tipc: fix error handling in tipc_udp_enable()

[Wei Yongjun]

Release alloced resource before return from the error handling
case in tipc_udp_enable(), otherwise will cause memory leak.

Fixes: 52dfae5c85a4 ("tipc: obtain node identity from interface by default")
Signed-off-by: Wei Yongjun <weiyongj...@huawei.com>
---
 net/tipc/udp_media.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c
index 2c13b18..e7d91f5 100644
--- a/net/tipc/udp_media.c
+++ b/net/tipc/udp_media.c
@@ -687,7 +687,8 @@ static int tipc_udp_enable(struct net *net, struct 
tipc_bearer *b,
        }
        if (!tipc_own_id(net)) {
                pr_warn("Failed to set node id, please configure manually\n");
-               return -EINVAL;
+               err = -EINVAL;
+               goto err;
        }
 
        b->bcast_addr.media_id = TIPC_MEDIA_TYPE_UDP;