| From | Greg Kroah-Hartman <> | Subject | [ 043/100] hwmon: (sht15) Check return value of regulator_enable() | Date | Tue, 12 Mar 2013 15:31:28 -0700 |
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3.8-stable review patch. If anyone has any objections, please let me know.
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From: Mark Brown <broonie@opensource.wolfsonmicro.com>
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@opensource.wolfsonmicro.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
--- drivers/hwmon/sht15.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
--- a/drivers/hwmon/sht15.c +++ b/drivers/hwmon/sht15.c @@ -926,7 +926,13 @@ static int sht15_probe(struct platform_d 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
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