From: Ian Abbott <abbotti@mev.co.uk>
Date: Fri, 28 Jun 2013 16:09:22 +0000 (+0100)
Subject: staging: comedi: ni_labpc: use labpc_have_dma_chan()
X-Git-Tag: v3.12-rc1~183^2~726
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5c8a138e9d33df4960e3cb497c60723c7fbdacf9;p=pandora-kernel.git

staging: comedi: ni_labpc: use labpc_have_dma_chan()

Call the new static inline function `labpc_have_dma_chan()` from
`labpc_ai_cmd()` to check if the ISA DMA channel has been initialized,
tidying up the surrounding code and removing an `#ifdef`.  If the
"ni_labpc_isadma" module is not being built, `labpc_have_dma_chan()`
doesn't bother checking the DMA channel and just returns `false`,
allowing the compiler to optimize out a small amount of code.

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