From: Grazvydas Ignotas <notasas@gmail.com>
Date: Sun, 22 May 2016 21:44:47 +0000 (+0300)
Subject: regulator: core: don't crash if set_voltage fails
X-Git-Tag: sz_175~23
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=commitdiff_plain;h=577bd8ba2b844aa11aa694a43943a57a09a973d1

regulator: core: don't crash if set_voltage fails

it was calling list_voltage() with uninitialized selector
---

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 2dd98387bc40..38d0c2c4d65b 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1745,7 +1745,7 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev,
 		ret = rdev->desc->ops->set_voltage(rdev, min_uV, max_uV,
 						   &selector);
 
-		if (rdev->desc->ops->list_voltage)
+		if (ret >= 0 && rdev->desc->ops->list_voltage)
 			selector = rdev->desc->ops->list_voltage(rdev,
 								 selector);
 		else