From: Luiz Augusto von Dentz luiz.von.dentz@intel.com
[ Upstream commit 5638d9ea9c01c77fc11693d48cf719bc7e88f224 ]
When disconnecting an ISO link the controller may not generate HCI_EV_NUM_COMP_PKTS for unacked packets which needs to be restored in hci_conn_del otherwise the host would assume they are still in use and would not be able to use all the buffers available.
Fixes: 26afbd826ee3 ("Bluetooth: Add initial implementation of CIS connections") Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Tested-by: Frédéric Danis frederic.danis@collabora.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/bluetooth/hci_conn.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index f1263cdd71dd..f26ed278d9e3 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -1003,10 +1003,21 @@ int hci_conn_del(struct hci_conn *conn) hdev->acl_cnt += conn->sent; } else { struct hci_conn *acl = conn->link; + if (acl) { acl->link = NULL; hci_conn_drop(acl); } + + /* Unacked ISO frames */ + if (conn->type == ISO_LINK) { + if (hdev->iso_pkts) + hdev->iso_cnt += conn->sent; + else if (hdev->le_pkts) + hdev->le_cnt += conn->sent; + else + hdev->acl_cnt += conn->sent; + } }
if (conn->amp_mgr)