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Bluetooth: 6LoWPAN: Count module usage
author
Jukka Rissanen
<jukka.rissanen@linux.intel.com>
Wed, 18 Jun 2014 13:37:10 +0000
(16:37 +0300)
committer
Marcel Holtmann
<marcel@holtmann.org>
Thu, 3 Jul 2014 15:42:44 +0000
(17:42 +0200)
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 <jukka.rissanen@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
net/bluetooth/6lowpan.c
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diff --git
a/net/bluetooth/6lowpan.c
b/net/bluetooth/6lowpan.c
index ceffe20fcbaa4a4a24c37e97636e4142d1567c19..ba6c641636852119c69991d13d537d917d7372d5 100644
(file)
--- 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);
}
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