linux/include/net/bluetooth
Johan Hedberg f161dd4122 Bluetooth: Fix hci_conn reference counting for auto-connections
Recently the LE passive scanning and auto-connections feature was
introduced. It uses the hci_connect_le() API which returns a hci_conn
along with a reference count to that object. All previous users would
tie this returned reference to some existing object, such as an L2CAP
channel, and there'd be no leaked references this way. For
auto-connections however the reference was returned but not stored
anywhere, leaving established connections with one higher reference
count than they should have.

Instead of playing special tricks with hci_conn_hold/drop this patch
associates the returned reference from hci_connect_le() with the object
that in practice does own this reference, i.e. the hci_conn_params
struct that caused us to initiate a connection in the first place. Once
the connection is established or fails to establish this reference is
removed appropriately.

One extra thing needed is to call hci_pend_le_actions_clear() before
calling hci_conn_hash_flush() so that the reference is cleared before
the hci_conn objects are fully removed.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-08-20 21:57:39 +03:00
..
bluetooth.h Bluetooth: Shrink size of struct l2cap_ctrl fields 2014-07-03 17:42:41 +02:00
hci_core.h Bluetooth: Fix hci_conn reference counting for auto-connections 2014-08-20 21:57:39 +03:00
hci_mon.h Bluetooth: Fix coding style in all .h files 2012-03-07 00:04:25 -03:00
hci_sock.h Bluetooth: Move HCI socket definitions into its own header file 2014-07-11 13:53:04 +03:00
hci.h Bluetooth: Rename HCI_PAIRABLE to HCI_BONDABLE 2014-07-30 19:28:41 +02:00
l2cap.h Bluetooth: Pass initiator/acceptor information to hci_conn_security() 2014-07-17 14:39:39 +02:00
mgmt.h Bluetooth: Rename pairable mgmt setting to bondable 2014-07-30 19:28:41 +02:00
rfcomm.h Bluetooth: Convert RFCOMM spinlocks into mutexes 2014-05-05 19:25:06 -07:00
sco.h Bluetooth: Move SCO timeout constants into net/bluetooth/sco.c 2014-07-11 13:58:58 +03:00