regulator: tps6586x-regulator - fix value range checking for val
val is used as array index of ri->voltages.
Thus the valid value range should be 0 .. ri->desc.n_voltages - 1.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
diff --git a/drivers/regulator/tps6586x-regulator.c b/drivers/regulator/tps6586x-regulator.c
index 8cff141..facd439 100644
--- a/drivers/regulator/tps6586x-regulator.c
+++ b/drivers/regulator/tps6586x-regulator.c
@@ -133,7 +133,7 @@
mask = ((1 << ri->volt_nbits) - 1) << ri->volt_shift;
val = (val & mask) >> ri->volt_shift;
- if (val > ri->desc.n_voltages)
+ if (val >= ri->desc.n_voltages)
BUG();
return ri->voltages[val] * 1000;