diff --git a/drivers/staging/comedi/drivers/ni_mio_cs.c b/drivers/staging/comedi/drivers/ni_mio_cs.c
index 253f735b3b4e..2d28a71511aa 100644
--- a/drivers/staging/comedi/drivers/ni_mio_cs.c
+++ b/drivers/staging/comedi/drivers/ni_mio_cs.c
@@ -230,13 +230,6 @@ static uint16_t mio_cs_win_in(struct comedi_device *dev, int addr)
 static int ni_getboardtype(struct comedi_device *dev,
 			   struct pcmcia_device *link);
 
-static void mio_cs_detach(struct comedi_device *dev)
-{
-	mio_common_detach(dev);
-	if (dev->irq)
-		free_irq(dev->irq, dev);
-}
-
 static struct pcmcia_device *cur_dev;
 
 static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it)
@@ -324,6 +317,13 @@ static int ni_getboardtype(struct comedi_device *dev,
 	return 0;
 }
 
+static void mio_cs_detach(struct comedi_device *dev)
+{
+	mio_common_detach(dev);
+	if (dev->irq)
+		free_irq(dev->irq, dev);
+}
+
 static struct comedi_driver driver_ni_mio_cs = {
 	.driver_name	= "ni_mio_cs",
 	.module		= THIS_MODULE,