[PATCH 3/4] Bluetooth: btusb: mediatek: reset the device as WMT failed

From: sean.wang
Date: Mon Sep 12 2022 - 18:19:51 EST


From: Sean Wang <sean.wang@xxxxxxxxxxxx>

Reset the BT device whenever the driver detected any WMT failure happened
to recover such kind of system-level error as soon as possible.

Signed-off-by: Sean Wang <sean.wang@xxxxxxxxxxxx>
---
drivers/bluetooth/btusb.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 653f57a98233..dc86726c8271 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -2576,6 +2576,10 @@ static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
data->evt_skb = NULL;
err_free_wc:
kfree(wc);
+
+ if (err < 0)
+ btmtk_reset_sync(hdev);
+
return err;
}

--
2.25.1