staging: comedi: adl_pci9118: remove 'ai_scans' from private data

This member of the private data is just a copy of the cmd->stop_arg.
Use that instead.

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/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index ae8afc7..bfcd90c 100644 (file)
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -348,7 +348,6 @@ struct pci9118_private {
                                                 * on external start
                                                 */
        unsigned short ao_data[2];              /* data output buffer */
-       unsigned int ai_scans;                  /* number of scans to do */
        char dma_doublebuf;                     /* we can use double buffering */
        unsigned int dma_actbuf;                /* which buffer is used now */
        unsigned short *dmabuf_virt[2];         /*
@@ -976,7 +975,7 @@ static void interrupt_pci9118_ai_onesample(struct comedi_device *dev,
                devpriv->ai_act_scan++;
                if (!devpriv->ai_neverending) {
                        /* all data sampled? */
-                       if (devpriv->ai_act_scan >= devpriv->ai_scans)
+                       if (devpriv->ai_act_scan >= cmd->stop_arg)
                                s->async->events |= COMEDI_CB_EOA;
                }
        }
@@ -991,6 +990,7 @@ static void interrupt_pci9118_ai_dma(struct comedi_device *dev,
                                     unsigned short int_daq)
 {
        struct pci9118_private *devpriv = dev->private;
+       struct comedi_cmd *cmd = &s->async->cmd;
        unsigned int next_dma_buf, samplesinbuf, sampls, m;
 
        if (int_amcc & MASTER_ABORT_INT) {
@@ -1041,7 +1041,7 @@ static void interrupt_pci9118_ai_dma(struct comedi_device *dev,
 
        if (!devpriv->ai_neverending) {
                /* all data sampled? */
-               if (devpriv->ai_act_scan >= devpriv->ai_scans)
+               if (devpriv->ai_act_scan >= cmd->stop_arg)
                        s->async->events |= COMEDI_CB_EOA;
        }
 
@@ -1332,6 +1332,7 @@ static int Compute_and_setup_dma(struct comedi_device *dev,
                                 struct comedi_subdevice *s)
 {
        struct pci9118_private *devpriv = dev->private;
+       struct comedi_cmd *cmd = &s->async->cmd;
        unsigned int dmalen0, dmalen1, i;
 
        dmalen0 = devpriv->dmabuf_size[0];
@@ -1413,10 +1414,10 @@ static int Compute_and_setup_dma(struct comedi_device *dev,
                        /* fits whole measure into one DMA buffer? */
                        if (dmalen0 >
                            ((devpriv->ai_n_realscanlen << 1) *
-                            devpriv->ai_scans)) {
+                            cmd->stop_arg)) {
                                dmalen0 =
                                    (devpriv->ai_n_realscanlen << 1) *
-                                   devpriv->ai_scans;
+                                   cmd->stop_arg;
                                dmalen0 &= ~3L;
                        } else {        /*
                                         * fits whole measure into
@@ -1424,10 +1425,10 @@ static int Compute_and_setup_dma(struct comedi_device *dev,
                                         */
                                if (dmalen1 >
                                    ((devpriv->ai_n_realscanlen << 1) *
-                                    devpriv->ai_scans - dmalen0))
+                                    cmd->stop_arg - dmalen0))
                                        dmalen1 =
                                            (devpriv->ai_n_realscanlen << 1) *
-                                           devpriv->ai_scans - dmalen0;
+                                           cmd->stop_arg - dmalen0;
                                dmalen1 &= ~3L;
                        }
                }
@@ -1630,12 +1631,8 @@ static int pci9118_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 #endif
        if (cmd->stop_src == TRIG_NONE)
                devpriv->ai_neverending = 1;
-       if (cmd->stop_src == TRIG_COUNT) {
-               devpriv->ai_scans = cmd->stop_arg;
+       if (cmd->stop_src == TRIG_COUNT)
                devpriv->ai_neverending = 0;
-       } else {
-               devpriv->ai_scans = 0;
-       }
 
        /* use sample&hold signal? */
        if (cmd->convert_src == TRIG_NOW)