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regulator: Don't create voltage sysfs entries if we can't read voltage
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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1 changed files with 2 additions and 1 deletions
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@ -2503,7 +2503,8 @@ static int add_regulator_attributes(struct regulator_dev *rdev)
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int status = 0;
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/* some attributes need specific methods to be displayed */
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if (ops->get_voltage || ops->get_voltage_sel) {
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if ((ops->get_voltage && ops->get_voltage(rdev) >= 0) ||
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(ops->get_voltage_sel && ops->get_voltage_sel(rdev) >= 0)) {
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status = device_create_file(dev, &dev_attr_microvolts);
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if (status < 0)
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return status;
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