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staging: comedi: hwdrv_apci3120: use sample manipulation helpers

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Use the recently added sample manipulation helpers to remove the hardcoded
assumption of the sample size.

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 2014-10-31 12:04:35 -07:00 committed by Greg Kroah-Hartman
parent 287a143ab4
commit 14f7b68058
1 changed files with 3 additions and 1 deletions
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4
drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
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@ -947,7 +947,9 @@ static int apci3120_cyclic_ai(int mode,
/* If DMA Enabled */
struct apci3120_dmabuf *dmabuf0 = &devpriv->dmabuf[0];
struct apci3120_dmabuf *dmabuf1 = &devpriv->dmabuf[1];
unsigned int scan_bytes = cmd->scan_end_arg * sizeof(short);
unsigned int scan_bytes;
scan_bytes = comedi_samples_to_bytes(s, cmd->scan_end_arg);
devpriv->b_InterruptMode = APCI3120_DMA_MODE;