From: Ian Abbott <abbotti@mev.co.uk>
Date: Fri, 12 Sep 2014 11:19:57 +0000 (+0100)
Subject: staging: comedi: addi_apci_3120: simplify setting of devpriv->us_UseDma
X-Git-Tag: fixes-for-v3.18-merge-window~15^2~429
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=062fdcada9858859b4c8a73322c4b0b718c779ff;p=pandora-kernel.git

staging: comedi: addi_apci_3120: simplify setting of devpriv->us_UseDma

`apci3120_auto_attach()` first sets `devpriv->us_UseDma` to 1, then sets
it back to 0 if it fails to allocate the DMA buffer.  Since `*devpriv`
is initially zeroed out by `comedi_alloc_devpriv()`, change it to only
set `devpriv->us_UseDma` to 1 if the allocation succeeds.  Also, don't
bother explicitly initializing `devpriv->b_DmaDoubleBuffer` to 0 as it
is already zeroed out.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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