From 18d93c176641cf7a3c0c452a6f03f46b5373d370 Mon Sep 17 00:00:00 2001 From: Jukka Rissanen Date: Wed, 18 Jun 2014 16:37:10 +0300 Subject: [PATCH] Bluetooth: 6LoWPAN: Count module usage 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 Signed-off-by: Marcel Holtmann --- net/bluetooth/6lowpan.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c index ceffe20fcbaa..ba6c64163685 100644 --- a/net/bluetooth/6lowpan.c +++ b/net/bluetooth/6lowpan.c @@ -100,6 +100,8 @@ 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; @@ -752,6 +754,9 @@ static inline void chan_ready_cb(struct l2cap_chan *chan) } } + if (!try_module_get(THIS_MODULE)) + return; + add_peer_chan(chan, dev); ifup(dev->netdev); }