@@ -1081,6 +1081,7 @@ static void ti_bulk_in_callback(struct urb *urb)
struct device *dev = &urb->dev->dev;
int status = urb->status;
int retval = 0;
+ unsigned long flags;
switch (status) {
case 0:
@@ -1116,20 +1117,20 @@ static void ti_bulk_in_callback(struct urb *urb)
__func__);
else
ti_recv(port, urb->transfer_buffer, urb->actual_length);
- spin_lock(&tport->tp_lock);
+ spin_lock_irqsave(&tport->tp_lock, flags);
port->icount.rx += urb->actual_length;
- spin_unlock(&tport->tp_lock);
+ spin_unlock_irqrestore(&tport->tp_lock, flags);
}
exit:
/* continue to read unless stopping */
- spin_lock(&tport->tp_lock);
+ spin_lock_irqsave(&tport->tp_lock, flags);
if (tport->tp_read_urb_state == TI_READ_URB_RUNNING)
retval = usb_submit_urb(urb, GFP_ATOMIC);
else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING)
tport->tp_read_urb_state = TI_READ_URB_STOPPED;
- spin_unlock(&tport->tp_lock);
+ spin_unlock_irqrestore(&tport->tp_lock, flags);
if (retval)
dev_err(dev, "%s - resubmit read urb failed, %d\n",
__func__, retval);
Complete() will be run with interrupt enabled, so change to spin_lock_irqsave(). Cc: Johan Hovold <jhovold@gmail.com> Signed-off-by: Ming Lei <ming.lei@canonical.com> --- drivers/usb/serial/ti_usb_3410_5052.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)