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staging: comedi: ni_pcidio: Grab MITE spinlock while preparing DMA.
authorIan Abbott <abbotti@mev.co.uk>
Mon, 9 Jan 2012 15:47:31 +0000 (15:47 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 9 Feb 2012 18:00:37 +0000 (10:00 -0800)
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>

No differences found
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