linux-kernel - [PATCH v2 4/6] MFD MAX8998/LP3974 Bufgix: accessing array out of bound.

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Message-id: <1292998991-26968-5-git-send-email-myungjoo.ham@samsung.com>
Date:	Wed, 22 Dec 2010 15:23:09 +0900
From:	MyungJoo Ham <myungjoo.ham@...sung.com>
To:	linux-kernel@...r.kernel.org
Cc:	Samuel Ortiz <sameo@...ux.intel.com>,
	Liam Girdwood <lrg@...mlogic.co.uk>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Alessandro Zummo <a.zummo@...ertech.it>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Joonyoung Shim <jy0922.shim@...sung.com>,
	Lukasz Majewski <l.majewski@...sung.com>,
	myungjoo.ham@...il.com
Subject: [PATCH v2 4/6] MFD MAX8998/LP3974 Bufgix: accessing array out of bound.

The previous driver may access ldo_voltage_map[] out of its bound at
probe function at line 790 (drivers/regulator/max8998.c). This patch
allocates an entry for every regulator in order to avoid accessing
out-of-bounds.

Signed-off-by: MyungJoo Ham <myungjoo.ham@...sung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@...sung.com>
---
 drivers/regulator/max8998.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c
index 7c1478b..d183756 100644
--- a/drivers/regulator/max8998.c
+++ b/drivers/regulator/max8998.c
@@ -110,6 +110,11 @@ static const struct voltage_map_desc *ldo_voltage_map[] = {
 	&buck12_voltage_map_desc,	/* BUCK2 */
 	&buck3_voltage_map_desc,	/* BUCK3 */
 	&buck4_voltage_map_desc,	/* BUCK4 */
+	NULL,				/* EN32KHZ_AP */
+	NULL,				/* EN32KHZ_CP */
+	NULL,				/* ENVICHG */
+	NULL,				/* ESAFEOUT1 */
+	NULL,				/* ESAFEOUT2 */
 };
 
 static inline int max8998_get_ldo(struct regulator_dev *rdev)
-- 
1.7.1

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