regulator: ab8500 - fix off-by-one value range checking for selector

selector is used as array index of info->supported_voltages
Thus the valid value range should be 0 .. info->voltages_len -1

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@openource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c
index 3d09580dc883245811d5607e3b56f7f829a2f95b..28c7ae67cec9ea1d573c94b30d8732f7770340b0 100644 (file)
--- a/drivers/regulator/ab8500.c
+++ b/drivers/regulator/ab8500.c
@@ -157,7 +157,7 @@ static int ab8500_list_voltage(struct regulator_dev *rdev, unsigned selector)
        if (info->fixed_uV)
                return info->fixed_uV;
 
-       if (selector > info->voltages_len)
+       if (selector >= info->voltages_len)
                return -EINVAL;
 
        return info->supported_voltages[selector];