Return-Path: From: Jukka Rissanen To: linux-bluetooth@vger.kernel.org Subject: [PATCH v4 4/5] Bluetooth: 6LoWPAN: Count module usage Date: Mon, 2 Jun 2014 13:08:23 +0300 Message-Id: <1401703704-22451-5-git-send-email-jukka.rissanen@linux.intel.com> In-Reply-To: <1401703704-22451-1-git-send-email-jukka.rissanen@linux.intel.com> References: <1401703704-22451-1-git-send-email-jukka.rissanen@linux.intel.com> Sender: linux-bluetooth-owner@vger.kernel.org List-ID: Count how many 6LoWPAN connections there exists so that we do not unload the module if there are still connections alive. Signed-off-by: Jukka Rissanen --- net/bluetooth/6lowpan.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c index 79e753b..ae0413f 100644 --- a/net/bluetooth/6lowpan.c +++ b/net/bluetooth/6lowpan.c @@ -101,6 +101,8 @@ static inline bool peer_del(struct lowpan_dev *dev, struct lowpan_peer *peer) { list_del(&peer->list); + module_put(THIS_MODULE); + if (atomic_dec_and_test(&dev->peer_count)) { BT_DBG("last peer"); return true; @@ -728,6 +730,9 @@ static inline void bt_6lowpan_chan_ready_cb(struct l2cap_chan *chan) } } + if (!try_module_get(THIS_MODULE)) + return; + add_peer_chan(chan, dev); ifup(dev->netdev); } -- 1.8.3.1