From: Axel Lin <axel.lin@gmail.com>
Date: Sun, 22 Aug 2010 14:38:15 +0000 (+0800)
Subject: regulator: tps6586x-regulator - fix value range checking for val
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=327531bada36e5786b13bb6918ad8afc545adfa2;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

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 8cff1413a147..facd439d0f12 100644
--- a/drivers/regulator/tps6586x-regulator.c
+++ b/drivers/regulator/tps6586x-regulator.c
@@ -133,7 +133,7 @@ static int tps6586x_ldo_get_voltage(struct regulator_dev *rdev)
 	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;