Complete() will be run with interrupt enabled, so change to
spin_lock_irqsave().
Cc: Lisa Nguyen <lisa@xxxxxxxxxxxxxxx>
Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxxxxx>
---
drivers/usb/misc/adutux.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c
index eb3c8c1..387c75e 100644
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -195,12 +195,13 @@ static void adu_interrupt_in_callback(struct urb *urb)
{
struct adu_device *dev = urb->context;
int status = urb->status;
+ unsigned long flags;
dbg(4, " %s : enter, status %d", __func__, status);
adu_debug_data(5, __func__, urb->actual_length,
urb->transfer_buffer);
- spin_lock(&dev->buflock);
+ spin_lock_irqsave(&dev->buflock, flags);
if (status != 0) {
if ((status != -ENOENT) && (status != -ECONNRESET) &&
@@ -229,7 +230,7 @@ static void adu_interrupt_in_callback(struct urb *urb)
exit:
dev->read_urb_finished = 1;
- spin_unlock(&dev->buflock);
+ spin_unlock_irqrestore(&dev->buflock, flags);
/* always wake up so we recover from errors */
wake_up_interruptible(&dev->read_wait);
adu_debug_data(5, __func__, urb->actual_length,
@@ -241,6 +242,7 @@ static void adu_interrupt_out_callback(struct urb *urb)
{
struct adu_device *dev = urb->context;
int status = urb->status;
+ unsigned long flags;
dbg(4, " %s : enter, status %d", __func__, status);
adu_debug_data(5, __func__, urb->actual_length, urb->transfer_buffer);
@@ -254,10 +256,10 @@ static void adu_interrupt_out_callback(struct urb *urb)
goto exit;
}
- spin_lock(&dev->buflock);
+ spin_lock_irqsave(&dev->buflock, flags);
dev->out_urb_finished = 1;
wake_up(&dev->write_wait);
- spin_unlock(&dev->buflock);
+ spin_unlock_irqrestore(&dev->buflock, flags);
exit:
adu_debug_data(5, __func__, urb->actual_length,
--
1.7.9.5
--
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