staging: comedi: pcmmio: 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.

Remove the unnecessary local variables used for the cmd->chanlist_len.

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/pcmmio.c b/drivers/staging/comedi/drivers/pcmmio.c
index 2d18513..76b67a6 100644 (file)
--- a/drivers/staging/comedi/drivers/pcmmio.c
+++ b/drivers/staging/comedi/drivers/pcmmio.c
@@ -339,8 +339,8 @@ static void pcmmio_handle_dio_intr(struct comedi_device *dev,
                                   unsigned int triggered)
 {
        struct pcmmio_private *devpriv = dev->private;
+       struct comedi_cmd *cmd = &s->async->cmd;
        unsigned int oldevents = s->async->events;
-       unsigned int len = s->async->cmd.chanlist_len;
        unsigned int val = 0;
        unsigned long flags;
        int i;
@@ -353,8 +353,8 @@ static void pcmmio_handle_dio_intr(struct comedi_device *dev,
        if (!(triggered & devpriv->enabled_mask))
                goto done;
 
-       for (i = 0; i < len; i++) {
-               unsigned int chan = CR_CHAN(s->async->cmd.chanlist[i]);
+       for (i = 0; i < cmd->chanlist_len; i++) {
+               unsigned int chan = CR_CHAN(cmd->chanlist[i]);
 
                if (triggered & (1 << chan))
                        val |= (1 << i);