staging: comedi: pcl812: use cfc_bytes_per_scan()

Use the comedi_fc helper to get the number of bytes per scan.

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/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c
index 3338e5d..4c1b947 100644 (file)
--- a/drivers/staging/comedi/drivers/pcl812.c
+++ b/drivers/staging/comedi/drivers/pcl812.c
@@ -557,10 +557,8 @@ static void pcl812_ai_setup_dma(struct comedi_device *dev,
 
        /*  we use EOS, so adapt DMA buffer to one scan */
        if (devpriv->ai_eos) {
-               devpriv->dmabytestomove[0] =
-                       cmd->chanlist_len * sizeof(short);
-               devpriv->dmabytestomove[1] =
-                       cmd->chanlist_len * sizeof(short);
+               devpriv->dmabytestomove[0] = cfc_bytes_per_scan(s);
+               devpriv->dmabytestomove[1] = cfc_bytes_per_scan(s);
                devpriv->dma_runs_to_end = 1;
        } else {
                devpriv->dmabytestomove[0] = devpriv->hwdmasize;
@@ -575,8 +573,7 @@ static void pcl812_ai_setup_dma(struct comedi_device *dev,
                        devpriv->dma_runs_to_end = 1;
                } else {
                        /*  how many samples we must transfer? */
-                       bytes = cmd->chanlist_len *
-                               cmd->stop_arg * sizeof(short);
+                       bytes = cmd->stop_arg * cfc_bytes_per_scan(s);
 
                        /*  how many DMA pages we must fill */
                        devpriv->dma_runs_to_end =