staging: comedi: comedi_fops: remove unnecessary s->async use

In places where the `s->async` value has been stored in a local
variable, use the variable instead of repeating `s->async`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index 9e49c8a..999e7d0 100644 (file)
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -687,7 +687,7 @@ static void do_become_nonbusy(struct comedi_device *dev,
                kfree(async->cmd.chanlist);
                async->cmd.chanlist = NULL;
                s->busy = NULL;
-               wake_up_interruptible_all(&s->async->wait_head);
+               wake_up_interruptible_all(&async->wait_head);
        } else {
                dev_err(dev->class_dev,
                        "BUG: (?) do_become_nonbusy called with async=NULL\n");
@@ -2652,14 +2652,14 @@ void comedi_event(struct comedi_device *dev, struct comedi_subdevice *s)
        if (!comedi_is_subdevice_running(s))
                return;
 
-       if (s->async->events & COMEDI_CB_CANCEL_MASK)
+       if (async->events & COMEDI_CB_CANCEL_MASK)
                runflags_mask |= COMEDI_SRF_RUNNING;
 
        /*
         * Remember if an error event has occurred, so an error
         * can be returned the next time the user does a read().
         */
-       if (s->async->events & COMEDI_CB_ERROR_MASK) {
+       if (async->events & COMEDI_CB_ERROR_MASK) {
                runflags_mask |= COMEDI_SRF_ERROR;
                runflags |= COMEDI_SRF_ERROR;
        }
@@ -2671,14 +2671,14 @@ void comedi_event(struct comedi_device *dev, struct comedi_subdevice *s)
                comedi_update_subdevice_runflags(s, runflags_mask, runflags);
        }
 
-       if (async->cb_mask & s->async->events) {
+       if (async->cb_mask & async->events) {
                wake_up_interruptible(&async->wait_head);
                if (s->subdev_flags & SDF_CMD_READ)
                        kill_fasync(&dev->async_queue, SIGIO, POLL_IN);
                if (s->subdev_flags & SDF_CMD_WRITE)
                        kill_fasync(&dev->async_queue, SIGIO, POLL_OUT);
        }
-       s->async->events = 0;
+       async->events = 0;
 }
 EXPORT_SYMBOL_GPL(comedi_event);