staging: comedi: pcl818: use cfc_bytes_per_scan()
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Tue, 27 May 2014 17:31:12 +0000 (10:31 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 28 May 2014 21:28:56 +0000 (14:28 -0700)
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>
drivers/staging/comedi/drivers/pcl818.c

index 48b81c39c6a82efce5237bdf75932200598ba170..7d00ae639d3885fff5715b8c7873d1ff83a1019c 100644 (file)
@@ -353,7 +353,7 @@ static void pcl818_ai_setup_dma(struct comedi_device *dev,
        disable_dma(devpriv->dma);      /*  disable dma */
        bytes = devpriv->hwdmasize;
        if (cmd->stop_src == TRIG_COUNT) {
-               bytes = cmd->chanlist_len * cmd->stop_arg * sizeof(short);
+               bytes = cmd->stop_arg * cfc_bytes_per_scan(s);
                devpriv->dma_runs_to_end = bytes / devpriv->hwdmasize;
                devpriv->last_dma_run = bytes % devpriv->hwdmasize;
                devpriv->dma_runs_to_end--;