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staging: comedi: cb_pcidas64: use comedi_cmd pointer

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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>
This commit is contained in:
H Hartley Sweeten 2014-05-27 10:31:03 -07:00 committed by Greg Kroah-Hartman
parent b727a91f59
commit 421ab41bce
1 changed files with 2 additions and 1 deletions
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3
drivers/staging/comedi/drivers/cb_pcidas64.c
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@ -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;