staging: comedi: comedi_fc: use comedi_cmd pointer

Use a local variable to access the comedi_cmd as a pointer instead
of getting to from the comedi_subdevice pointer.

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/comedi_fc.c b/drivers/staging/comedi/drivers/comedi_fc.c
index cf3da2c..c33c3e5 100644 (file)
--- a/drivers/staging/comedi/drivers/comedi_fc.c
+++ b/drivers/staging/comedi/drivers/comedi_fc.c
@@ -24,7 +24,7 @@
 
 unsigned int cfc_bytes_per_scan(struct comedi_subdevice *s)
 {
-       unsigned int chanlist_len = s->async->cmd.chanlist_len;
+       struct comedi_cmd *cmd = &s->async->cmd;
        unsigned int num_samples;
        unsigned int bits_per_sample;
 
@@ -33,11 +33,11 @@ unsigned int cfc_bytes_per_scan(struct comedi_subdevice *s)
        case COMEDI_SUBD_DO:
        case COMEDI_SUBD_DIO:
                bits_per_sample = 8 * bytes_per_sample(s);
-               num_samples = (chanlist_len + bits_per_sample - 1) /
+               num_samples = (cmd->chanlist_len + bits_per_sample - 1) /
                                bits_per_sample;
                break;
        default:
-               num_samples = chanlist_len;
+               num_samples = cmd->chanlist_len;
                break;
        }
        return num_samples * bytes_per_sample(s);