* [PATCH] regulator: Fix off-by-one value range checking for mc13xxx_regulator_get_voltage
@ 2011-05-18 12:56 Axel Lin
2011-05-18 16:30 ` Mark Brown
2011-05-21 11:54 ` Liam Girdwood
0 siblings, 2 replies; 3+ messages in thread
From: Axel Lin @ 2011-05-18 12:56 UTC (permalink / raw)
To: linux-kernel; +Cc: Yong Shen, Liam Girdwood, Mark Brown
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
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] regulator: Fix off-by-one value range checking for mc13xxx_regulator_get_voltage
2011-05-18 12:56 [PATCH] regulator: Fix off-by-one value range checking for mc13xxx_regulator_get_voltage Axel Lin
@ 2011-05-18 16:30 ` Mark Brown
2011-05-21 11:54 ` Liam Girdwood
1 sibling, 0 replies; 3+ messages in thread
From: Mark Brown @ 2011-05-18 16:30 UTC (permalink / raw)
To: Axel Lin; +Cc: linux-kernel, Yong Shen, Liam Girdwood
On Wed, May 18, 2011 at 08:56:45PM +0800, Axel Lin wrote:
> 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>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] regulator: Fix off-by-one value range checking for mc13xxx_regulator_get_voltage
2011-05-18 12:56 [PATCH] regulator: Fix off-by-one value range checking for mc13xxx_regulator_get_voltage Axel Lin
2011-05-18 16:30 ` Mark Brown
@ 2011-05-21 11:54 ` Liam Girdwood
1 sibling, 0 replies; 3+ messages in thread
From: Liam Girdwood @ 2011-05-21 11:54 UTC (permalink / raw)
To: Axel Lin; +Cc: linux-kernel, Yong Shen, Mark Brown
On Wed, 2011-05-18 at 20:56 +0800, Axel Lin wrote:
> 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];
> }
Applied
Thanks
Liam
^ permalink raw reply [flat|nested] 3+ messages in thread
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2011-05-18 12:56 [PATCH] regulator: Fix off-by-one value range checking for mc13xxx_regulator_get_voltage Axel Lin
2011-05-18 16:30 ` Mark Brown
2011-05-21 11:54 ` Liam Girdwood
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