diff options
| author | Guenter Roeck <linux@roeck-us.net> | 2014-01-27 19:10:00 +0100 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2014-02-08 12:46:00 +0100 |
| commit | 55b40d37311807a6bb2acdae0df904f54a0da3ae (patch) | |
| tree | b273b91937b2ecede65e07dc9ceae926c21a3c4e /drivers/iio/adc/max1363.c | |
| parent | iio:accel:bma180: Use modifier instead of index in channel specification (diff) | |
| download | linux-55b40d37311807a6bb2acdae0df904f54a0da3ae.tar.xz linux-55b40d37311807a6bb2acdae0df904f54a0da3ae.zip | |
iio: max1363: Use devm_regulator_get_optional for optional regulator
In kernel version 3.13, devm_regulator_get() may return no error
if a regulator is undeclared. regulator_get_voltage() will return
-EINVAL if this happens. This causes the driver to fail loading if
the vref regulator is not declared.
Since vref is optional, call devm_regulator_get_optional instead.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: Stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/adc/max1363.c')
| -rw-r--r-- | drivers/iio/adc/max1363.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c index e283f2f2ee2f..360259266d4f 100644 --- a/drivers/iio/adc/max1363.c +++ b/drivers/iio/adc/max1363.c @@ -1560,7 +1560,7 @@ static int max1363_probe(struct i2c_client *client, st->client = client; st->vref_uv = st->chip_info->int_vref_mv * 1000; - vref = devm_regulator_get(&client->dev, "vref"); + vref = devm_regulator_get_optional(&client->dev, "vref"); if (!IS_ERR(vref)) { int vref_uv; |