staging: comedi: cb_pcidas64: use comedi_cmd pointer

Use a local variable to access the comedi_cmd as a pointer instead
of getting to 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/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c
index aca1e69..63b00cf 100644 (file)
--- a/drivers/staging/comedi/drivers/cb_pcidas64.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas64.c
@@ -2723,6 +2723,7 @@ static void drain_dma_buffers(struct comedi_device *dev, unsigned int channel)
        const struct pcidas64_board *thisboard = comedi_board(dev);
        struct pcidas64_private *devpriv = dev->private;
        struct comedi_async *async = dev->read_subdev->async;
+       struct comedi_cmd *cmd = &async->cmd;
        uint32_t next_transfer_addr;
        int j;
        int num_samples = 0;
@@ -2744,7 +2745,7 @@ static void drain_dma_buffers(struct comedi_device *dev, unsigned int channel)
              DMA_BUFFER_SIZE) && j < ai_dma_ring_count(thisboard); j++) {
                /*  transfer data from dma buffer to comedi buffer */
                num_samples = dma_transfer_size(dev);
-               if (async->cmd.stop_src == TRIG_COUNT) {
+               if (cmd->stop_src == TRIG_COUNT) {
                        if (num_samples > devpriv->ai_count)
                                num_samples = devpriv->ai_count;
                        devpriv->ai_count -= num_samples;