staging: comedi: hwdrv_apci3120: use comedi_buf_write_samples()

Use comedi_buf_write_samples() to add the samples to the async buffer.
That function will handle the '* sizeof(foo)' calculation to determine
the number of bytes to add.
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-data/hwdrv_apci3120.c

@@ -1172,7 +1172,7 @@ static void v_APCI3120_InterruptDmaMoveBlock16bit(struct comedi_device *dev,
 	s->async->cur_chan += num_samples;
 	s->async->cur_chan %= cmd->scan_end_arg;
 
-	cfc_write_array_to_buffer(s, dma_buffer, num_samples * sizeof(short));
+	comedi_buf_write_samples(s, dma_buffer, num_samples);
 }
 
 /*