From 897d21b9ac61e6199e03da67c2307553db0736bf Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 27 May 2014 10:31:10 -0700 Subject: [PATCH] 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 Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/pcl812.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/staging/comedi/drivers/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c index 3338e5d..4c1b947 100644 --- 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 = -- 2.7.4