[PATCH 47/50] staging: btmtk_usb: spin_lock in complete() cleanup
From: Ming Lei <hidden>
Date: 2013-07-11 09:12:54
Also in:
alsa-devel, linux-input, linux-media, linux-wireless
Subsystem:
staging subsystem, the rest · Maintainers:
Greg Kroah-Hartman, Linus Torvalds
Complete() will be run with interrupt enabled, so change to spin_lock_irqsave(). Cc: devel-gWbeCf7V1WCQmaza687I9mD2FQJk+8+b@public.gmane.org Signed-off-by: Ming Lei <redacted> --- 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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