[CONNECTOR]: add a missing break in cn_netlink_send()

Each entry in the list has a unique id, so just break out of the
loop if the matched id is found.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c
index bf9716b..edf1349 100644
--- a/drivers/connector/connector.c
+++ b/drivers/connector/connector.c
@@ -88,6 +88,7 @@
 			if (cn_cb_equal(&__cbq->id.id, &msg->id)) {
 				found = 1;
 				group = __cbq->group;
+				break;
 			}
 		}
 		spin_unlock_bh(&dev->cbdev->queue_lock);