From: Axel Lin <axel.lin@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Yong Shen <yong.shen@linaro.org>,
Liam Girdwood <lrg@slimlogic.co.uk>,
Mark Brown <broonie@opensource.wolfsonmicro.com>
Subject: [PATCH] regulator: Fix off-by-one value range checking for mc13xxx_regulator_get_voltage
Date: Wed, 18 May 2011 20:56:45 +0800 [thread overview]
Message-ID: <1305723405.6172.1.camel@phoenix> (raw)
We use val as array index,
thus the valid value rangae for val should be 0 .. n_voltages-1.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
drivers/regulator/mc13xxx-regulator-core.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/regulator/mc13xxx-regulator-core.c b/drivers/regulator/mc13xxx-regulator-core.c
index 2bb5de1..bc27ab1 100644
--- a/drivers/regulator/mc13xxx-regulator-core.c
+++ b/drivers/regulator/mc13xxx-regulator-core.c
@@ -174,7 +174,7 @@ static int mc13xxx_regulator_get_voltage(struct regulator_dev *rdev)
dev_dbg(rdev_get_dev(rdev), "%s id: %d val: %d\n", __func__, id, val);
- BUG_ON(val > mc13xxx_regulators[id].desc.n_voltages);
+ BUG_ON(val >= mc13xxx_regulators[id].desc.n_voltages);
return mc13xxx_regulators[id].voltages[val];
}
--
1.7.1
next reply other threads:[~2011-05-18 12:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-18 12:56 Axel Lin [this message]
2011-05-18 16:30 ` [PATCH] regulator: Fix off-by-one value range checking for mc13xxx_regulator_get_voltage Mark Brown
2011-05-21 11:54 ` Liam Girdwood
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