staging: comedi: ni_6527: use dev->read_subdev in interrupt handler

The comedi_subdevice in the interrupt handler is the dev->read_subdev
that was initialized during the attach. Use that instead of accessing
the dev->subdevices[] array directly.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 45a6e37744e1dfa1d384b495462b2d53df0f0393..2ad9a80765f7661f2a2712e634f76835f03e1cfb 100644 (file)
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -205,7 +205,7 @@ static irqreturn_t ni6527_interrupt(int irq, void *d)
 {
        struct comedi_device *dev = d;
        struct ni6527_private *devpriv = dev->private;
-       struct comedi_subdevice *s = &dev->subdevices[2];
+       struct comedi_subdevice *s = dev->read_subdev;
        unsigned int status;
 
        status = readb(devpriv->mite->daq_io_addr + Change_Status);