staging: comedi: ni_660x: remove spinlock 'dma_cfg_lock'

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This spinlock is only used to protect changes to the private data 'dma_cfg'.

Before calling any function that would change the 'dma_cfg' the spinlock
'mite_channel_lock' is also locked. That spinlock is not unlocked until
after the 'dma_cfg' change.

Remove the redundant spinlock.

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>

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H Hartley Sweeten 2016-03-22 11:10:51 -07:00 • committed by Greg Kroah-Hartman

parent 4f2c3b2077

commit 80c67b37fc

1 changed files with 0 additions and 9 deletions

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drivers/staging/comedi/drivers/ni_660x.c

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