staging: comedi: ni_mio_common: scale ao INSN_CONFIG_GET_CMD_TIMING_CONSTRAINTS

Fixes implementation of INSN_CONFIG_GET_CMD_TIMING_CONSTRAINTS for
ni_mio devices.  The previous patch should have used the channel
information passed in to scale the result by the number of channels being
used.

Fixes: 51fd36738383 ("staging: comedi: ni_mio_common: implement INSN_CONFIG_GET_CMD_TIMING_CONSTRAINTS")
Signed-off-by: Spencer E. Olson <olsonse@umich.edu>
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_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
index 2d1e0325d04d122280eb267c7e1ccd997b6988b4..5edf59ac6706d3b5cd7d23d0f945895dc1cb8f48 100644 (file)
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -2843,7 +2843,8 @@ static int ni_ao_insn_config(struct comedi_device *dev,
                return ni_ao_arm(dev, s);
        case INSN_CONFIG_GET_CMD_TIMING_CONSTRAINTS:
                /* we don't care about actual channels */
-               data[1] = board->ao_speed;
+               /* data[3] : chanlist_len */
+               data[1] = board->ao_speed * data[3];
                data[2] = 0;
                return 0;
        default: