[PATCH 5.18 530/879] Bluetooth: hci_conn: Fix hci_connect_le_sync

Greg Kroah-Hartman
2022-06-08T01:09:46Z

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

[ Upstream commit c9f73a2178c12fb24d2807634209559d6a836e08 ]

The handling of connection failures shall be handled by the request
completion callback as already done by hci_cs_le_create_conn, also make
sure to use hci_conn_failed instead of hci_le_conn_failed as the later
don't actually call hci_conn_del to cleanup.

Link: https://github.com/bluez/bluez/issues/340
Fixes: 8e8b92ee60de5 ("Bluetooth: hci_sync: Add hci_le_create_conn_sync")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/bluetooth/hci_conn.c | 5 +++--
net/bluetooth/hci_event.c | 8 +++++---
2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 882a7df13005..ac06c9724c7f 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -943,10 +943,11 @@ static void create_le_conn_complete(struct hci_dev *hdev, void *data, int err)

bt_dev_err(hdev, "request failed to create LE connection: err %d", err);

- if (!conn)
+ /* Check if connection is still pending */
+ if (conn != hci_lookup_le_connect(hdev))
goto done;

- hci_le_conn_failed(conn, err);
+ hci_conn_failed(conn, err);

done:
hci_dev_unlock(hdev);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 0270e597c285..af17dfb20e01 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -5632,10 +5632,12 @@ static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
status = HCI_ERROR_INVALID_PARAMETERS;
}

- if (status) {
- hci_conn_failed(conn, status);
+ /* All connection failure handling is taken care of by the
+ * hci_conn_failed function which is triggered by the HCI
+ * request completion callbacks used for connecting.
+ */
+ if (status)
goto unlock;
- }

if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
addr_type = BDADDR_LE_PUBLIC;
--
2.35.1