--- x/drivers/input/misc/cm109.c
+++ y/drivers/input/misc/cm109.c
@@ -562,15 +562,18 @@ static int cm109_input_open(struct input
 		dev->ctl_data->byte[HID_OR2] = dev->keybit;
 		dev->ctl_data->byte[HID_OR3] = 0x00;
 
+		spin_lock_irq(&dev->ctl_submit_lock);
 		dev->ctl_urb_pending = 1;
-		error = usb_submit_urb(dev->urb_ctl, GFP_KERNEL);
+		error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC);
 		if (!error) {
 			dev->open = 1;
+			spin_unlock_irq(&dev->ctl_submit_lock);
 			return 0;
 		}
+		dev->ctl_urb_pending = 0;
+		spin_unlock_irq(&dev->ctl_submit_lock);
 	}
 
-	dev->ctl_urb_pending = 0;
 	usb_autopm_put_interface(dev->intf);
 
 	dev_err(&dev->intf->dev, "%s: usb_submit_urb (urb_ctl) failed %d\n",