staging: comedi: pcl816: remove 'ai_n_chan' from private data

This member of the private data is just a copy of the cmd->chanlist_len.

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>

diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c
index 042b4c372bfbb7adfa70c0e8e63c0a6bfc023274..77bf99698144d3bc805935561bb78ba6047a3e7b 100644 (file)
--- a/drivers/staging/comedi/drivers/pcl816.c
+++ b/drivers/staging/comedi/drivers/pcl816.c
@@ -140,7 +140,6 @@ struct pcl816_private {
        unsigned int ai_act_chanlist[16];       /*  MUX setting for actual AI operations */
        unsigned int ai_act_chanlist_len;       /*  how long is actual MUX list */
        unsigned int ai_act_chanlist_pos;       /*  actual position in MUX list */
-       unsigned int ai_n_chan;         /*  how many channels per scan */
        unsigned int ai_poll_ptr;       /*  how many sampes transfer poll */
 };
 
@@ -260,7 +259,7 @@ static irqreturn_t interrupt_pcl816_ai_mode13_int(int irq, void *d)
                devpriv->ai_act_chanlist_pos = 0;
 
        s->async->cur_chan++;
-       if (s->async->cur_chan >= devpriv->ai_n_chan) {
+       if (s->async->cur_chan >= cmd->chanlist_len) {
                s->async->cur_chan = 0;
                devpriv->ai_act_scan++;
        }
@@ -301,7 +300,7 @@ static void transfer_from_dma_buf(struct comedi_device *dev,
                }
 
                s->async->cur_chan++;
-               if (s->async->cur_chan >= devpriv->ai_n_chan) {
+               if (s->async->cur_chan >= cmd->chanlist_len) {
                        s->async->cur_chan = 0;
                        devpriv->ai_act_scan++;
                }
@@ -520,7 +519,6 @@ static int pcl816_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
        setup_channel_list(dev, s, cmd->chanlist, seglen);
        udelay(1);
 
-       devpriv->ai_n_chan = cmd->chanlist_len;
        devpriv->ai_act_scan = 0;
        s->async->cur_chan = 0;
        devpriv->irq_blocked = 1;