regulator: ti-abb: Fix off-by-one valid range checking for abb->current_info_idx
abb->current_info_idx is used as array subscript to access volt_table,
thus the valid value range should be 0 ... desc->n_voltages - 1.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/regulator/ti-abb-regulator.c b/drivers/regulator/ti-abb-regulator.c
index c1870ea..870d209 100644
--- a/drivers/regulator/ti-abb-regulator.c
+++ b/drivers/regulator/ti-abb-regulator.c
@@ -387,8 +387,8 @@
return -EINVAL;
}
- if (abb->current_info_idx > (int)desc->n_voltages) {
- dev_err(dev, "%s: Corrupted data? idx(%d) > n_voltages(%d)\n",
+ if (abb->current_info_idx >= (int)desc->n_voltages) {
+ dev_err(dev, "%s: Corrupted data? idx(%d) >= n_voltages(%d)\n",
__func__, abb->current_info_idx, desc->n_voltages);
return -EINVAL;
}