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hwmon: (sht15) Check return value of regulator_enable()

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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 <[email protected]>
Cc: [email protected] #3.8+; 3.0+ will need manual backport
Signed-off-by: Guenter Roeck <[email protected]>
This commit is contained in:
Mark Brown 2013-03-02 15:33:30 +08:00 • committed by Guenter Roeck
commit 3e78080f81
1 changed files with 7 additions and 1 deletions
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8
drivers/hwmon/sht15.c
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@ -965,7 +965,13 @@ 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