[ 3.5.y.z extended stable ] Patch "hwmon: (sht15) Check return value of regulator_enable()" has been added to staging queue
Luis Henriques
luis.henriques at canonical.com
Mon Mar 11 12:07:49 UTC 2013
This is a note to let you know that I have just added a patch titled
hwmon: (sht15) Check return value of regulator_enable()
to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree
which can be found at:
http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue
If you, or anyone else, feels it should not be added to this tree, please
reply to this email.
For more information about the 3.5.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable
Thanks.
-Luis
------
>From b759601033bf8191e89df1c162fd142545914b11 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie at opensource.wolfsonmicro.com>
Date: Sat, 2 Mar 2013 15:33:30 +0800
Subject: [PATCH] hwmon: (sht15) Check return value of regulator_enable()
commit 3e78080f81481aa8340374d5a37ae033c1cf4272 upstream.
Not having power is a pretty serious error so check that we are able to
enable the supply and error out if we can't.
Signed-off-by: Mark Brown <broonie at opensource.wolfsonmicro.com>
Signed-off-by: Guenter Roeck <linux at roeck-us.net>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
drivers/hwmon/sht15.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
index 8b011d0..eb01802 100644
--- a/drivers/hwmon/sht15.c
+++ b/drivers/hwmon/sht15.c
@@ -926,7 +926,13 @@ static int __devinit sht15_probe(struct platform_device *pdev)
if (voltage)
data->supply_uV = voltage;
- regulator_enable(data->reg);
+ ret = regulator_enable(data->reg);
+ if (ret != 0) {
+ dev_err(&pdev->dev,
+ "failed to enable regulator: %d\n", ret);
+ return ret;
+ }
+
/*
* Setup a notifier block to update this if another device
* causes the voltage to change
--
1.8.1.2
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