From: Sasha Levin <sasha.levin@oracle.com>
Date: Tue, 22 Dec 2015 17:43:36 +0000 (-0500)
Subject: power: test_power: correctly handle empty writes
X-Git-Tag: v3.2.77~54
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=abaa03b0d6f1442c236ee0a667f7e14f129fd67c;p=pandora-kernel.git

power: test_power: correctly handle empty writes

commit 6b9140f39c2aaf76791197fbab0839c0e4af56e8 upstream.

Writing 0 length data into test_power makes it access an invalid array
location and kill the system.

Fixes: f17ef9b2d ("power: Make test_power driver more dynamic.")
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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