aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorRoel Kluin <roel.kluin@gmail.com>2010-02-12 12:30:21 +0100
committerLiam Girdwood <lrg@slimlogic.co.uk>2010-02-12 11:39:49 +0000
commit62737d445b149eaf0beac50de8d856b5e94150be (patch)
treef885a0c65d63cefa8794398228c686a1c733e82c
parent973e9a2795b3b41d8408a0bb6f87b783c5efc88a (diff)
downloadlinux-linaro-stable-62737d445b149eaf0beac50de8d856b5e94150be.tar.gz
regulator/lp3971: vol_map out of bounds in lp3971_{ldo,dcdc}_set_voltage()
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@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
-rw-r--r--drivers/regulator/lp3971.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/regulator/lp3971.c b/drivers/regulator/lp3971.c
index 76d08c282f9c..4f33a0f4a179 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),