Complete() will be run with interrupt enabled, so change to
spin_lock_irqsave().
Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxxxxx>
---
drivers/staging/btmtk_usb/btmtk_usb.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/btmtk_usb/btmtk_usb.c b/drivers/staging/btmtk_usb/btmtk_usb.c
index 0e783e8..ea10d4f 100644
--- a/drivers/staging/btmtk_usb/btmtk_usb.c
+++ b/drivers/staging/btmtk_usb/btmtk_usb.c
@@ -1218,6 +1218,7 @@ static void btmtk_usb_tx_complete(struct urb *urb)
struct sk_buff *skb = urb->context;
struct hci_dev *hdev = (struct hci_dev *)skb->dev;
struct btmtk_usb_data *data = hci_get_drvdata(hdev);
+ unsigned long flags;
BT_DBG("%s: %s urb %p status %d count %d\n", __func__, hdev->name,
urb, urb->status, urb->actual_length);
@@ -1231,9 +1232,9 @@ static void btmtk_usb_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
--
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