diff options
| author | H Hartley Sweeten <hartleys@visionengravers.com> | 2015-01-12 10:55:47 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-17 14:25:19 -0800 |
| commit | 2447a27c877a1a4995a85eb4bc456551c0c5a5f9 (patch) | |
| tree | c1d82def919bbd1b74efe75c11f6e224d9f7ca16 /drivers/staging/comedi/drivers/ni_at_a2150.c | |
| parent | 45478548425cc84d2d39cdac9daf446e5744877d (diff) | |
staging: comedi: ni_at_a2150: use comedi_bytes_per_sample()
For aesthetics, use the helper function to get the byte size of each sample
instead of using sizeof() the first buffer element.
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/comedi/drivers/ni_at_a2150.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_at_a2150.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c b/drivers/staging/comedi/drivers/ni_at_a2150.c index 8265322d4d4c..7380dac9215c 100644 --- a/drivers/staging/comedi/drivers/ni_at_a2150.c +++ b/drivers/staging/comedi/drivers/ni_at_a2150.c @@ -551,14 +551,14 @@ static int a2150_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) /* set size of transfer to fill in 1/3 second */ #define ONE_THIRD_SECOND 333333333 devpriv->dma_transfer_size = - sizeof(devpriv->dma_buffer[0]) * cmd->chanlist_len * + comedi_bytes_per_sample(s) * cmd->chanlist_len * ONE_THIRD_SECOND / cmd->scan_begin_arg; if (devpriv->dma_transfer_size > A2150_DMA_BUFFER_SIZE) devpriv->dma_transfer_size = A2150_DMA_BUFFER_SIZE; - if (devpriv->dma_transfer_size < sizeof(devpriv->dma_buffer[0])) - devpriv->dma_transfer_size = sizeof(devpriv->dma_buffer[0]); + if (devpriv->dma_transfer_size < comedi_bytes_per_sample(s)) + devpriv->dma_transfer_size = comedi_bytes_per_sample(s); devpriv->dma_transfer_size -= - devpriv->dma_transfer_size % sizeof(devpriv->dma_buffer[0]); + devpriv->dma_transfer_size % comedi_bytes_per_sample(s); set_dma_count(devpriv->dma, devpriv->dma_transfer_size); enable_dma(devpriv->dma); release_dma_lock(lock_flags); |