From: Ian Abbott <abbotti@mev.co.uk>
Date: Thu, 4 Apr 2013 13:58:51 +0000 (+0100)
Subject: staging: comedi: pre-lock mutex on creation of comedi device
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~137^2~297
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=07778393d9a8dbc4b9306d20a8ecfe053771ba93;p=pandora-kernel.git

staging: comedi: pre-lock mutex on creation of comedi device

Return from `comedi_alloc_board_minor()` with the mutex of the created
`struct comedi_device` pre-locked.  This allows further initialization
by the caller without the worry of something getting in there first.

`comedi_auto_config()` no longer needs to check if the device is already
"attached" since whatever was trying to attach the device would need to
have locked the mutex first.

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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