staging: comedi: poc: remove subdevice pointer math

Convert the comedi_subdevice access from pointer math to array
access.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/poc.c b/drivers/staging/comedi/drivers/poc.c
index c253bb9ef3350af913fcbd5dfeac776d01a15b29..78dfe167b147d502ee1ee6c91b61dc22223acc57 100644 (file)
--- a/drivers/staging/comedi/drivers/poc.c
+++ b/drivers/staging/comedi/drivers/poc.c
@@ -164,7 +164,7 @@ static int poc_attach(struct comedi_device *dev, struct comedi_devconfig *it)
                return -ENOMEM;
 
        /* analog output subdevice */
-       s = dev->subdevices + 0;
+       s = &dev->subdevices[0];
        s->type = board->type;
        s->n_chan = board->n_chan;
        s->maxdata = (1 << board->n_bits) - 1;