From: Martin Kepplinger <martink@posteo.de>
Date: Tue, 24 Mar 2015 01:21:20 +0000 (+1030)
Subject: lguest: explicitly set miscdevice's private_data NULL
X-Git-Tag: omap-for-v4.1/fixes-rc1~53^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=67c50bf292c1c02ec7ca548049c53cc08dc75ed1;p=pandora-kernel.git

lguest: explicitly set miscdevice's private_data NULL

There is a proposed change to the miscdevice's behaviour on open(). Currently
file->private_data stays NULL, but only because we don't have an open-entry in
struct file_operations.

This may change so that private_data, more consistently, is always set to
struct miscdevice, not only *if* the driver has it's own open() routine and
fops-entry, see https://lkml.org/lkml/2014/12/4/939 and commit
94e4fe2cab3d43b3ba7c3f721743006a8c9d913a

In short: If we rely on file->private_data being NULL, we should ensure
it is NULL ourselves.

Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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