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staging: comedi: das16: use comedi_buf_write_samples()

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Use comedi_buf_write_samples() to add the samples to the async buffer.
That function will determining the number of bytes to add based on the
bytes_per_sample().

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
2014-10-22 15:36:41 -07:00
committed by Greg Kroah-Hartman
parent b45a7beb3b
commit 2e7b65e4bb
1 changed files with 4 additions and 2 deletions
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6
drivers/staging/comedi/drivers/das16.c
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@@ -541,6 +541,7 @@ static void das16_interrupt(struct comedi_device *dev)
struct comedi_cmd *cmd = &async->cmd;
unsigned long spin_flags;
unsigned long dma_flags;
unsigned int nsamples;
int num_bytes, residue;
int buffer_index;
@@ -583,8 +584,9 @@ static void das16_interrupt(struct comedi_device *dev)
spin_unlock_irqrestore(&dev->spinlock, spin_flags);
cfc_write_array_to_buffer(s,
devpriv->dma_buffer[buffer_index], num_bytes);
nsamples = num_bytes / bytes_per_sample(s);
comedi_buf_write_samples(s, devpriv->dma_buffer[buffer_index],
nsamples);
comedi_handle_events(dev, s);
}