From 6d29c5ec4f2f59b5d0426b14722481510a1ef233 Mon Sep 17 00:00:00 2001 From: Mark Brown 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 Signed-off-by: Guenter Roeck --- 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 1c85d39df171..8047fed8034d 100644 --- a/drivers/hwmon/sht15.c +++ b/drivers/hwmon/sht15.c @@ -926,7 +926,13 @@ static int 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 -- 2.50.1