diff --git a/drivers/staging/comedi/drivers/usbdux.c b/drivers/staging/comedi/drivers/usbdux.c
index d576af734407..eea41e8ad1ac 100644
--- a/drivers/staging/comedi/drivers/usbdux.c
+++ b/drivers/staging/comedi/drivers/usbdux.c
@@ -877,13 +877,9 @@ ao_trig_exit:
 static int usbdux_ao_cmdtest(struct comedi_device *dev,
 			     struct comedi_subdevice *s, struct comedi_cmd *cmd)
 {
-	struct usbdux_private *devpriv = dev->private;
 	int err = 0;
 	unsigned int flags;
 
-	if (!devpriv)
-		return -EFAULT;
-
 	/* Step 1 : check if triggers are trivially valid */
 
 	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);