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authorJohan Hedberg <johan.hedberg@intel.com>2014-08-18 00:41:42 +0300
committerMarcel Holtmann <marcel@holtmann.org>2014-09-08 19:07:53 +0200
commit6c388d32ec1b9fcc2f2404fb5e9b3b0096be5de9 (patch)
treed25aa7646454e2f0cbd73ce4b724c3cfa9587e84 /net/bluetooth/hci_conn.c
parenteb78d7e53d144995b9e023b151de19fa40af72f3 (diff)
downloadop-kernel-dev-6c388d32ec1b9fcc2f2404fb5e9b3b0096be5de9.zip
op-kernel-dev-6c388d32ec1b9fcc2f2404fb5e9b3b0096be5de9.tar.gz
Bluetooth: Fix hci_conn reference counting with hci_chan
The hci_chan_del() function was doing a hci_conn_drop() but there was no matching hci_conn_hold() in the hci_chan_create() function. Furthermore, as the hci_chan struct holds a pointer to the hci_conn there should be proper use of hci_conn_get/put. This patch fixes both issues so that hci_chan does correct reference counting of the hci_conn object. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth/hci_conn.c')
-rw-r--r--net/bluetooth/hci_conn.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 4ecc9d5..7815826 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -1295,7 +1295,8 @@ struct hci_chan *hci_chan_create(struct hci_conn *conn)
if (!chan)
return NULL;
- chan->conn = conn;
+ chan->conn = hci_conn_get(conn);
+ hci_conn_hold(conn);
skb_queue_head_init(&chan->data_q);
chan->state = BT_CONNECTED;
@@ -1316,6 +1317,7 @@ void hci_chan_del(struct hci_chan *chan)
synchronize_rcu();
hci_conn_drop(conn);
+ hci_conn_put(conn);
skb_queue_purge(&chan->data_q);
kfree(chan);
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