staging: comedi: rti800: tidy up rti800_ao_insn_read()

For aesthetic reasons, tidy up the parameters passed to this function.

The comedi core expects (*insn_read) functions to return the number
of data values actually read (insn->n). Change the return to make
clearer.

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

diff --git a/drivers/staging/comedi/drivers/rti800.c b/drivers/staging/comedi/drivers/rti800.c
index 226c0d52ff0053ecb04a9a3339d106d165a7fad1..04ba9e69b00a2f5a92bb7cf60e9190f47efca080 100644 (file)
--- a/drivers/staging/comedi/drivers/rti800.c
+++ b/drivers/staging/comedi/drivers/rti800.c
@@ -219,16 +219,17 @@ static int rti800_ai_insn_read(struct comedi_device *dev,
 
 static int rti800_ao_insn_read(struct comedi_device *dev,
                               struct comedi_subdevice *s,
-                              struct comedi_insn *insn, unsigned int *data)
+                              struct comedi_insn *insn,
+                              unsigned int *data)
 {
        struct rti800_private *devpriv = dev->private;
-       int i;
        int chan = CR_CHAN(insn->chanspec);
+       int i;
 
        for (i = 0; i < insn->n; i++)
                data[i] = devpriv->ao_readback[chan];
 
-       return i;
+       return insn->n;
 }
 
 static int rti800_ao_insn_write(struct comedi_device *dev,