staging: comedi: ni_pcidio: Grab MITE spinlock while preparing DMA.

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When setting up the DMA for 'read' streaming acquisition command, grab
the MITE channel spinlock before preparing and arming the DMA.

Change inspired by ni_ai_setup_MITE_dma() in ni_mio_common.c.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Ian Abbott 2012-01-09 15:47:31 +00:00 • committed by Greg Kroah-Hartman

parent 41add2e84b

commit e3794b52f5

1 changed files with 10 additions and 5 deletions

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drivers/staging/comedi/drivers/ni_pcidio.c

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