diff options
Diffstat (limited to 'drivers/usb/misc/appledisplay.c')
| -rw-r--r-- | drivers/usb/misc/appledisplay.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c index 39ca31b4de46..ac92725458b5 100644 --- a/drivers/usb/misc/appledisplay.c +++ b/drivers/usb/misc/appledisplay.c @@ -69,7 +69,6 @@ struct appledisplay { struct delayed_work work; int button_pressed; - spinlock_t lock; struct mutex sysfslock; /* concurrent read and write */ }; @@ -79,7 +78,6 @@ static void appledisplay_complete(struct urb *urb) { struct appledisplay *pdata = urb->context; struct device *dev = &pdata->udev->dev; - unsigned long flags; int status = urb->status; int retval; @@ -105,8 +103,6 @@ static void appledisplay_complete(struct urb *urb) goto exit; } - spin_lock_irqsave(&pdata->lock, flags); - switch(pdata->urbdata[1]) { case ACD_BTN_BRIGHT_UP: case ACD_BTN_BRIGHT_DOWN: @@ -119,8 +115,6 @@ static void appledisplay_complete(struct urb *urb) break; } - spin_unlock_irqrestore(&pdata->lock, flags); - exit: retval = usb_submit_urb(pdata->urb, GFP_ATOMIC); if (retval) { @@ -229,7 +223,6 @@ static int appledisplay_probe(struct usb_interface *iface, pdata->udev = udev; - spin_lock_init(&pdata->lock); INIT_DELAYED_WORK(&pdata->work, appledisplay_work); mutex_init(&pdata->sysfslock); @@ -261,6 +254,7 @@ static int appledisplay_probe(struct usb_interface *iface, usb_rcvintpipe(udev, int_in_endpointAddr), pdata->urbdata, ACD_URB_BUFFER_LEN, appledisplay_complete, pdata, 1); + pdata->urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; if (usb_submit_urb(pdata->urb, GFP_KERNEL)) { retval = -EIO; dev_err(&iface->dev, "Submitting URB failed\n"); |