1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/staging/comedi/drivers/amplc_pc236.c b/drivers/staging/comedi/drivers/amplc_pc236.c
index eacb5e4735d7..36768b2b30ae 100644
--- a/drivers/staging/comedi/drivers/amplc_pc236.c
+++ b/drivers/staging/comedi/drivers/amplc_pc236.c
@@ -573,9 +573,8 @@ static int __devinit pc236_attach_pci(struct comedi_device *dev,
 static void pc236_detach(struct comedi_device *dev)
 {
         const struct pc236_board *thisboard = comedi_board(dev);
-        struct pc236_private *devpriv = dev->private;
 
-        if (devpriv)
+        if (dev->iobase)
                 pc236_intr_disable(dev);
         if (dev->irq)
                 free_irq(dev->irq, dev);