This member of the private data is just a copy of the cmd->chanlist. Use
that instead.
Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com>
Cc: Ian Abbott <abbo...@mev.co.uk>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/staging/comedi/drivers/pcl812.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/drivers/staging/comedi/drivers/pcl812.c
b/drivers/staging/comedi/drivers/pcl812.c
index d0708f8..8728a90 100644
--- a/drivers/staging/comedi/drivers/pcl812.c
+++ b/drivers/staging/comedi/drivers/pcl812.c
@@ -517,7 +517,6 @@ struct pcl812_private {
unsigned char ai_dma; /* =1 we use DMA */
unsigned int ai_poll_ptr; /* how many sampes transfer poll */
unsigned int ai_act_scan; /* how many scans we finished */
- unsigned int ai_chanlist[MAX_CHANLIST_LEN]; /* our copy of
channel/range list */
unsigned int ai_data_len; /* len of data buffer */
unsigned int dmapages;
unsigned int hwdmasize;
@@ -769,15 +768,13 @@ static int pcl812_ai_cmd(struct comedi_device *dev,
struct comedi_subdevice *s)
pcl812_start_pacer(dev, false);
- memcpy(devpriv->ai_chanlist, cmd->chanlist,
- sizeof(unsigned int) * cmd->scan_end_arg);
/* select first channel and range */
- setup_range_channel(dev, s, devpriv->ai_chanlist[0], 1);
+ setup_range_channel(dev, s, cmd->chanlist[0], 1);
if (devpriv->dma) { /* check if we can use DMA transfer */
devpriv->ai_dma = 1;
for (i = 1; i < cmd->chanlist_len; i++)
- if (devpriv->ai_chanlist[0] != devpriv->ai_chanlist[i])
{
+ if (cmd->chanlist[0] != cmd->chanlist[i]) {
/* we cann't use DMA :-( */
devpriv->ai_dma = 0;
break;
@@ -921,9 +918,8 @@ static irqreturn_t interrupt_pcl812_ai_int(int irq, void *d)
next_chan = s->async->cur_chan + 1;
if (next_chan >= cmd->chanlist_len)
next_chan = 0;
- if (devpriv->ai_chanlist[s->async->cur_chan] !=
- devpriv->ai_chanlist[next_chan])
- setup_range_channel(dev, s, devpriv->ai_chanlist[next_chan], 0);
+ if (cmd->chanlist[s->async->cur_chan] != cmd->chanlist[next_chan])
+ setup_range_channel(dev, s, cmd->chanlist[next_chan], 0);
outb(0, dev->iobase + PCL812_CLRINT); /* clear INT request */
--
1.8.5.2
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