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| author | Axel Lin <axel.lin@gmail.com> | 2010-07-26 15:34:14 +0800 |
|---|---|---|
| committer | Liam Girdwood <lrg@slimlogic.co.uk> | 2010-07-27 11:29:23 +0100 |
| commit | 979da89a9c230381ca55ea0764428a5d42a01e7f (patch) | |
| tree | 0bce5a6e5c147cddaba8b6c455a00039b45993c3 /drivers/regulator/ab3100.c | |
| parent | b37fa16e78d6f9790462b3181602a26b5af36260 (diff) | |
| download | linux-3.10-979da89a9c230381ca55ea0764428a5d42a01e7f.tar.gz linux-3.10-979da89a9c230381ca55ea0764428a5d42a01e7f.tar.bz2 linux-3.10-979da89a9c230381ca55ea0764428a5d42a01e7f.zip | |
ab3100: fix off-by-one value range checking for voltage selector
We use voltage selector as an array index for typ_voltages.
Thus the valid range for voltage selector should be 0..voltages_len-1.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'drivers/regulator/ab3100.c')
| -rw-r--r-- | drivers/regulator/ab3100.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/regulator/ab3100.c b/drivers/regulator/ab3100.c index 7b14a67bdca..11790990277 100644 --- a/drivers/regulator/ab3100.c +++ b/drivers/regulator/ab3100.c @@ -286,7 +286,7 @@ static int ab3100_list_voltage_regulator(struct regulator_dev *reg, { struct ab3100_regulator *abreg = reg->reg_data; - if (selector > abreg->voltages_len) + if (selector >= abreg->voltages_len) return -EINVAL; return abreg->typ_voltages[selector]; } @@ -318,7 +318,7 @@ static int ab3100_get_voltage_regulator(struct regulator_dev *reg) regval &= 0xE0; regval >>= 5; - if (regval > abreg->voltages_len) { + if (regval >= abreg->voltages_len) { dev_err(®->dev, "regulator register %02x contains an illegal voltage setting\n", abreg->regreg); |