Complete() will be run with interrupt enabled, so change to spin_lock_irqsave(). Cc: Marcel Holtmann <marcel@xxxxxxxxxxxx> Cc: Gustavo Padovan <gustavo@xxxxxxxxxxx> Cc: Johan Hedberg <johan.hedberg@xxxxxxxxx> Cc: linux-bluetooth@xxxxxxxxxxxxxxx Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxxxxx> --- drivers/bluetooth/btusb.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 8e16f0a..5be2def 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -576,6 +576,7 @@ static void btusb_tx_complete(struct urb *urb) struct sk_buff *skb = urb->context; struct hci_dev *hdev = (struct hci_dev *) skb->dev; struct btusb_data *data = hci_get_drvdata(hdev); + unsigned long flags; BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, urb->actual_length); @@ -589,9 +590,9 @@ static void btusb_tx_complete(struct urb *urb) hdev->stat.err_tx++; done: - spin_lock(&data->txlock); + spin_lock_irqsave(&data->txlock, flags); data->tx_in_flight--; - spin_unlock(&data->txlock); + spin_unlock_irqrestore(&data->txlock, flags); kfree(urb->setup_packet); -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html