From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 14 May 2013 21:33:53 +0000 (-0700)
Subject: staging: comedi: dt9812: cleanup analog out subdevice (*insn_write)
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~76^2~609
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=99928e654da031e5cbf537ab2e83997a1420e30c;p=pandora-kernel.git

staging: comedi: dt9812: cleanup analog out subdevice (*insn_write)

For aesthetic reasons, rename the function to help with grepping and
rename some of the local vars.

The dt9812_analog_out() function can fail. Make sure to check for any
failure and return the errno.

The comedi core expects the (*insn_write) functions to return either
an errno or the number of samples written. Change the final return to
insn->n to make this clearer.

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