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From: Roel Kluin on 12 Feb 2010 06:30
After `for (val = LDO_VOL_MIN_IDX; val <= LDO_VOL_MAX_IDX; val++)', if no break
occurs, val reaches LDO_VOL_MIN_IDX + 1, which is out of bounds for
ldo45_voltage_map[] and ldo123_voltage_map[].

Similarly BUCK_TARGET_VOL_MAX_IDX + 1 is out of bounds for buck_voltage_map[].

Signed-off-by: Roel Kluin <roel.kluin(a)gmail.com>
---
diff --git a/drivers/regulator/lp3971.c b/drivers/regulator/lp3971.c
index 76d08c2..4f33a0f 100644
--- a/drivers/regulator/lp3971.c
+++ b/drivers/regulator/lp3971.c
@@ -183,7 +183,7 @@ static int lp3971_ldo_set_voltage(struct regulator_dev *dev,
if (vol_map[val] >= min_vol)
break;

- if (vol_map[val] > max_vol)
+ if (val > LDO_VOL_MAX_IDX || vol_map[val] > max_vol)
return -EINVAL;

return lp3971_set_bits(lp3971, LP3971_LDO_VOL_CONTR_REG(ldo),
@@ -272,7 +272,7 @@ static int lp3971_dcdc_set_voltage(struct regulator_dev *dev,
if (vol_map[val] >= min_vol)
break;

- if (vol_map[val] > max_vol)
+ if (val > BUCK_TARGET_VOL_MAX_IDX || vol_map[val] > max_vol)
return -EINVAL;

ret = lp3971_set_bits(lp3971, LP3971_BUCK_TARGET_VOL1_REG(buck),
--
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Prev: [PATCH 1/2] GFS2: Fix error code
Next: regulator: Fix display of null constraints for regulators