staging: comedi: mite: tidy up local variables in mite_sync_output_dma()

Tidy up the local variables so that the comedi_cmd is accessed as a pointer
instead of getting to it from the comedi_async 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/mite.c b/drivers/staging/comedi/drivers/mite.c
index c12806ee4f6f882b09d36e7d5747f5a70b9c495c..19c029acbc99a51d94006af6fb69cd03a612abae 100644 (file)
--- a/drivers/staging/comedi/drivers/mite.c
+++ b/drivers/staging/comedi/drivers/mite.c
@@ -562,21 +562,19 @@ int mite_sync_output_dma(struct mite_channel *mite_chan,
                         struct comedi_subdevice *s)
 {
        struct comedi_async *async = s->async;
-       int count;
+       struct comedi_cmd *cmd = &async->cmd;
+       u32 stop_count = cmd->stop_arg * cfc_bytes_per_scan(s);
+       unsigned int old_alloc_count = async->buf_read_alloc_count;
        u32 nbytes_ub, nbytes_lb;
-       unsigned int old_alloc_count;
-       u32 stop_count = async->cmd.stop_arg * cfc_bytes_per_scan(s);
+       int count;
 
-       old_alloc_count = async->buf_read_alloc_count;
        /*  read alloc as much as we can */
        comedi_buf_read_alloc(s, async->prealloc_bufsz);
        nbytes_lb = mite_bytes_read_from_memory_lb(mite_chan);
-       if (async->cmd.stop_src == TRIG_COUNT &&
-           (int)(nbytes_lb - stop_count) > 0)
+       if (cmd->stop_src == TRIG_COUNT && (int)(nbytes_lb - stop_count) > 0)
                nbytes_lb = stop_count;
        nbytes_ub = mite_bytes_read_from_memory_ub(mite_chan);
-       if (async->cmd.stop_src == TRIG_COUNT &&
-           (int)(nbytes_ub - stop_count) > 0)
+       if (cmd->stop_src == TRIG_COUNT && (int)(nbytes_ub - stop_count) > 0)
                nbytes_ub = stop_count;
        if ((int)(nbytes_ub - old_alloc_count) > 0) {
                dev_warn(s->device->class_dev, "mite: DMA underrun\n");