Bluetooth: Disconnect logical link when deleting chan

Disconnect logical link for high speed channel hs_hchan
associated with L2CAP channel chan.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

2 files changed, 21 insertions, 0 deletions

diff --git a/net/bluetooth/amp.c b/net/bluetooth/amp.c
index 0f3fef34eabc..917e034b9aa5 100644
--- a/net/bluetooth/amp.c
+++ b/net/bluetooth/amp.c
@@ -422,6 +422,20 @@ done:
         hci_dev_put(hdev);
 }
 
+void amp_disconnect_logical_link(struct hci_chan *hchan)
+{
+        struct hci_conn *hcon = hchan->conn;
+        struct hci_cp_disconn_logical_link cp;
+
+        if (hcon->state != BT_CONNECTED) {
+                BT_DBG("hchan %p not connected", hchan);
+                return;
+        }
+
+        cp.log_handle = cpu_to_le16(hchan->handle);
+        hci_send_cmd(hcon->hdev, HCI_OP_DISCONN_LOGICAL_LINK, sizeof(cp), &cp);
+}
+
 void amp_destroy_logical_link(struct hci_chan *hchan, u8 reason)
 {
         BT_DBG("hchan %p", hchan);
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index ecc5020c9242..bb2cd9eaa8a1 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -578,6 +578,13 @@ void l2cap_chan_del(struct l2cap_chan *chan, int err)
                         mgr->bredr_chan = NULL;
         }
 
+        if (chan->hs_hchan) {
+                struct hci_chan *hs_hchan = chan->hs_hchan;
+
+                BT_DBG("chan %p disconnect hs_hchan %p", chan, hs_hchan);
+                amp_disconnect_logical_link(hs_hchan);
+        }
+
         chan->ops->teardown(chan, err);
 
         if (test_bit(CONF_NOT_COMPLETE, &chan->conf_state))