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

sean.wang at mediatek.com sean.wang at mediatek.com
Mon Sep 12 15:18:12 PDT 2022


From: Sean Wang <sean.wang at mediatek.com>

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 at mediatek.com>
---
 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




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