staging: comedi: amplc_pci230: use cfc_bytes_per_scan()

Use the comedi_fc helper function to get the 'bytes_per_scan'.

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/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c
index 9c82543..3895bc7 100644 (file)
--- a/drivers/staging/comedi/drivers/amplc_pci230.c
+++ b/drivers/staging/comedi/drivers/amplc_pci230.c
@@ -1197,15 +1197,13 @@ static int pci230_handle_ao_fifo(struct comedi_device *dev,
        unsigned int room;
        unsigned short dacstat;
        unsigned int i, n;
-       unsigned int bytes_per_scan;
        unsigned int events = 0;
        int running;
 
        /* Get DAC FIFO status. */
        dacstat = inw(dev->iobase + PCI230_DACCON);
        /* Determine number of scans available in buffer. */
-       bytes_per_scan = cmd->chanlist_len * sizeof(short);
-       num_scans = comedi_buf_read_n_available(s) / bytes_per_scan;
+       num_scans = comedi_buf_read_n_available(s) / cfc_bytes_per_scan(s);
        if (cmd->stop_src == TRIG_COUNT) {
                /* Fixed number of scans. */
                if (num_scans > devpriv->ao_scan_count)