diff options
| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2014-05-27 10:31:00 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-28 14:28:54 -0700 |
| commit | 9663ab1f9fda4b53cfbfe7a0b196b6d0c1de8efa (patch) | |
| tree | 4efe3b492e48c53f8463f2fe80d223ed159e46ff /drivers/staging | |
| parent | ae2348e22824529112b50cbbda7451749b185479 (diff) | |
staging: comedi: ni_mio_common: 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>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_mio_common.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 9afe76f2c7c..7ffdcc07ef9 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -1468,10 +1468,11 @@ static void ni_ai_munge(struct comedi_device *dev, struct comedi_subdevice *s, { struct ni_private *devpriv = dev->private; struct comedi_async *async = s->async; - unsigned int i; + struct comedi_cmd *cmd = &async->cmd; unsigned int length = num_bytes / bytes_per_sample(s); unsigned short *array = data; unsigned int *larray = data; + unsigned int i; for (i = 0; i < length; i++) { #ifdef PCIDMA @@ -1485,7 +1486,7 @@ static void ni_ai_munge(struct comedi_device *dev, struct comedi_subdevice *s, else array[i] += devpriv->ai_offset[chan_index]; chan_index++; - chan_index %= async->cmd.chanlist_len; + chan_index %= cmd->chanlist_len; } } @@ -2710,22 +2711,22 @@ static void ni_ao_munge(struct comedi_device *dev, struct comedi_subdevice *s, { const struct ni_board_struct *board = comedi_board(dev); struct comedi_async *async = s->async; - unsigned int range; - unsigned int i; - unsigned int offset; + struct comedi_cmd *cmd = &async->cmd; unsigned int length = num_bytes / sizeof(short); + unsigned int offset = 1 << (board->aobits - 1); unsigned short *array = data; + unsigned int range; + unsigned int i; - offset = 1 << (board->aobits - 1); for (i = 0; i < length; i++) { - range = CR_RANGE(async->cmd.chanlist[chan_index]); + range = CR_RANGE(cmd->chanlist[chan_index]); if (board->ao_unipolar == 0 || (range & 1) == 0) array[i] -= offset; #ifdef PCIDMA array[i] = cpu_to_le16(array[i]); #endif chan_index++; - chan_index %= async->cmd.chanlist_len; + chan_index %= cmd->chanlist_len; } } |