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 3eaa83f..a30efb8 100644
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -159,11 +159,12 @@ static void adu_interrupt_in_callback(struct urb *urb)
{
struct adu_device *dev = urb->context;
int status = urb->status;
+ unsigned long flags;
adu_debug_data(&dev->udev->dev, __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) &&
@@ -194,7 +195,7 @@ 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);
}
@@ -203,6 +204,7 @@ static void adu_interrupt_out_callback(struct urb *urb)
{
struct adu_device *dev = urb->context;
int status = urb->status;
+ unsigned long flags;
adu_debug_data(&dev->udev->dev, __func__,
urb->actual_length, urb->transfer_buffer);
@@ -217,10 +219,10 @@ static void adu_interrupt_out_callback(struct urb *urb)
return;
}
- 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);
}
static int adu_open(struct inode *inode, struct file *file)
--
1.7.9.5
--
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