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Commit b5fc9c10 authored by H Hartley Sweeten's avatar H Hartley Sweeten Committed by Greg Kroah-Hartman
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staging: comedi: pcl816: fix DMA 'bytes' calculation 



The calculation for the total number of bytes in the DMA transfer
is incorrect. Fix it.

Signed-off-by: default avatarH Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: default avatarIan Abbott <abbotti@mev.co.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 29791cf5

drivers/staging/comedi/drivers/pcl816.c

+1 −3
Original line number Diff line number Diff line
@@ -164,9 +164,7 @@ static void pcl816_ai_setup_dma(struct comedi_device *dev, 
	bytes = devpriv->hwdmasize;

	if (cmd->stop_src == TRIG_COUNT) {

		/*  how many */

		bytes = s->async->cmd.chanlist_len *

		s->async->cmd.chanlist_len *

		sizeof(short);

		bytes = cmd->stop_arg * cmd->chanlist_len * sizeof(short);



		/*  how many DMA pages we must fill */

		devpriv->dma_runs_to_end = bytes / devpriv->hwdmasize;