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-rw-r--r--drivers/staging/comedi/drivers/pcl816.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c
index 3742f5f78fc6..9c1b963a0bed 100644
--- a/drivers/staging/comedi/drivers/pcl816.c
+++ b/drivers/staging/comedi/drivers/pcl816.c
@@ -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;