Bluetooth: mediatek: fix up an error path to restore bdev->tx_state

Restore bdev->tx_state with clearing bit BTMTKUART_TX_WAIT_VND_EVT
when there is an error on waiting for the corresponding event.

Fixes: 7237c4c9ec92 ("Bluetooth: mediatek: Add protocol support for MediaTek serial devices")
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/bluetooth/btmtkuart.c b/drivers/bluetooth/btmtkuart.c
index b8ea011b82d8..9f8177b216b6 100644
--- a/drivers/bluetooth/btmtkuart.c
+++ b/drivers/bluetooth/btmtkuart.c
@@ -115,11 +115,13 @@ static int mtk_hci_wmt_sync(struct hci_dev *hdev, u8 op, u8 flag, u16 plen,
                                   TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
         if (err == -EINTR) {
                 bt_dev_err(hdev, "Execution of wmt command interrupted");
+                clear_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state);
                 return err;
         }
 
         if (err) {
                 bt_dev_err(hdev, "Execution of wmt command timed out");
+                clear_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state);
                 return -ETIMEDOUT;
         }