From: Mattia Dongili <malattia@linux.it>
Date: Sat, 2 Apr 2011 10:00:44 +0000 (+0900)
Subject: sony-laptop: fix early NULL pointer dereference
X-Git-Tag: v2.6.39-rc4~63^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fef34861381eefe266c822fc28bdedc897a8265f;p=pandora-kernel.git

sony-laptop: fix early NULL pointer dereference

The SNC acpi driver could get early notifications before it fully
initializes and that could lead to dereferencing the sony_nc_handles
structure pointer that is still NULL at that stage.
Make sure we return early from the handle lookup function in these
cases.

Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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