dbus/connection: fix buffer leak on shutdown
dbus/connection: fix buffer leak on shutdown

Make sure we correctly free buffers if socket_queue() fails. Otherwise,
we'd leak the skb plus message.

Signed-off-by: David Herrmann <fb53b2ddb8d141e0cb39d7c67c2f81b6bc2eb0f7@gmail.com>

bus1/dbus-broker