staging: comedi: pcl816: use cfc_handle_events()
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Sat, 8 Mar 2014 00:31:39 +0000 (17:31 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 17 Mar 2014 20:55:56 +0000 (13:55 -0700)
Use the comedi_fc helper function to automatically call the subdevice
(*cancel) function when needed and call comedi_event().

Update the Kconfig so that COMEDI_PCL816 selects COMEDI_FC.

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>
drivers/staging/comedi/Kconfig
drivers/staging/comedi/drivers/pcl816.c

index 627c67b092b597d0e5261bac2e08d957d4311d53..df7010b26d656943afe53edc2c7cd0317c6bfeb3 100644 (file)
@@ -189,6 +189,7 @@ config COMEDI_PCL812
 config COMEDI_PCL816
        tristate "Advantech PCL-814 and PCL-816 ISA card support"
        depends on VIRT_TO_BUS && ISA_DMA_API
+       select COMEDI_FC
        ---help---
          Enable support for Advantech PCL-814 and PCL-816 ISA cards
 
index 6386ef7a0042c1ffb6858a558c33861d646eec41..6f276f23fabe284e934bfa32e36b81805ca646f6 100644 (file)
@@ -307,7 +307,6 @@ static bool pcl816_ai_next_chan(struct comedi_device *dev,
        if (cmd->stop_src == TRIG_COUNT &&
            devpriv->ai_act_scan >= cmd->stop_arg) {
                /* all data sampled */
-               s->cancel(dev, s);
                s->async->events |= COMEDI_CB_EOA;
                return false;
        }
@@ -362,7 +361,7 @@ static irqreturn_t pcl816_interrupt(int irq, void *d)
 
        pcl816_ai_clear_eoc(dev);
 
-       comedi_event(dev, s);
+       cfc_handle_events(dev, s);
        return IRQ_HANDLED;
 }
 
@@ -520,7 +519,7 @@ static int pcl816_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
        devpriv->ai_poll_ptr = top1;    /*  new buffer position */
        spin_unlock_irqrestore(&dev->spinlock, flags);
 
-       comedi_event(dev, s);
+       cfc_handle_events(dev, s);
 
        return s->async->buf_write_count - s->async->buf_read_count;
 }