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(parent: 17d326f) | patch
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)
commit6a0173774fcf7d887da62174af74f2d941d1956c
treeba20af124a99cdfe60f9e2087e24d2314c0acf5dtree | snapshot
parent17d326f5b2d53fe2d2517d6b43fe824650dbc818commit | diff
staging: comedi: ni_pcidio: Grab MITE spinlock while preparing DMA.

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>
drivers/staging/comedi/drivers/ni_pcidio.c diff | blob | history
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