[BLUETOOTH]: Return negative error constant

Return negative error constant.
Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/bluetooth/bnep/core.c

@@ -533,7 +533,7 @@ int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock)
 			   (*req->device) ? req->device : "bnep%d",
 			   bnep_net_setup);
 	if (!dev)
-		return ENOMEM;
+		return -ENOMEM;
 
 
 	down_write(&bnep_session_sem);