staging: comedi: addi_apci_2032: use comedi_handle_events()

Use comedi_handle_events() to automatically (*cancel) the async command
for an end-of-acquisition or if an error/overflow occurs.

Also, comedi_handle_events() does nothing if no events are set so the
local variable 'do_event' can be removed.
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/drivers/addi_apci_2032.c

@@ -178,7 +178,6 @@ static irqreturn_t apci2032_interrupt(int irq, void *d)
 	struct comedi_cmd *cmd = &s->async->cmd;
 	struct apci2032_int_private *subpriv;
 	unsigned int val;
-	bool do_event = false;
 
 	if (!dev->attached)
 		return IRQ_NONE;
@@ -220,19 +219,16 @@ static irqreturn_t apci2032_interrupt(int irq, void *d)
 				if (subpriv->stop_count == 0) {
 					/* end of acquisition */
 					s->async->events |= COMEDI_CB_EOA;
-					apci2032_int_stop(dev, s);
 				}
 			}
 		} else {
-			apci2032_int_stop(dev, s);
 			s->async->events |= COMEDI_CB_OVERFLOW;
 		}
-		do_event = true;
 	}
 
 	spin_unlock(&subpriv->spinlock);
-	if (do_event)
-		comedi_event(dev, s);
+
+	comedi_handle_events(dev, s);
 
 	return IRQ_HANDLED;
 }