staging: comedi: pcmmio: remove 'continuous' from private data

This member of the private data can be determined from the cmd->stop_src.
Do that instead and remove the member.

Refactor pcmmio_handle_dio_intr() to remove an indent level.

For aesthetics, change the switch in pcmmio_cmd() to an if/else.

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/pcmmio.c b/drivers/staging/comedi/drivers/pcmmio.c
index 76b67a6..fed7e77 100644 (file)
--- a/drivers/staging/comedi/drivers/pcmmio.c
+++ b/drivers/staging/comedi/drivers/pcmmio.c
@@ -192,7 +192,6 @@ struct pcmmio_private {
        unsigned int enabled_mask;
        unsigned int stop_count;
        unsigned int active:1;
-       unsigned int continuous:1;
 
        unsigned int ao_readback[8];
 };
@@ -371,15 +370,12 @@ static void pcmmio_handle_dio_intr(struct comedi_device *dev,
        }
 
        /* Check for end of acquisition. */
-       if (!devpriv->continuous) {
-               /* stop_src == TRIG_COUNT */
-               if (devpriv->stop_count > 0) {
-                       devpriv->stop_count--;
-                       if (devpriv->stop_count == 0) {
-                               s->async->events |= COMEDI_CB_EOA;
-                               /* TODO: STOP_ACQUISITION_CALL_HERE!! */
-                               pcmmio_stop_intr(dev, s);
-                       }
+       if (cmd->stop_src == TRIG_COUNT && devpriv->stop_count > 0) {
+               devpriv->stop_count--;
+               if (devpriv->stop_count == 0) {
+                       s->async->events |= COMEDI_CB_EOA;
+                       /* TODO: STOP_ACQUISITION_CALL_HERE!! */
+                       pcmmio_stop_intr(dev, s);
                }
        }
 
@@ -421,7 +417,7 @@ static int pcmmio_start_intr(struct comedi_device *dev,
        unsigned int pol_bits = 0;
        int i;
 
-       if (!devpriv->continuous && devpriv->stop_count == 0) {
+       if (cmd->stop_src == TRIG_COUNT && devpriv->stop_count == 0) {
                /* An empty acquisition! */
                s->async->events |= COMEDI_CB_EOA;
                devpriv->active = 0;
@@ -502,17 +498,10 @@ static int pcmmio_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
        devpriv->active = 1;
 
        /* Set up end of acquisition. */
-       switch (cmd->stop_src) {
-       case TRIG_COUNT:
-               devpriv->continuous = 0;
+       if (cmd->stop_src == TRIG_COUNT)
                devpriv->stop_count = cmd->stop_arg;
-               break;
-       default:
-               /* TRIG_NONE */
-               devpriv->continuous = 1;
+       else    /* TRIG_NONE */
                devpriv->stop_count = 0;
-               break;
-       }
 
        /* Set up start of acquisition. */
        if (cmd->start_src == TRIG_INT)