Messages in this thread Patch in this message | | | From | Tomer Maimon <> | Subject | [PATCH v1] iio: adc: modify NPCM ADC read reference voltage | Date | Sun, 7 Apr 2019 11:19:28 +0300 |
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Checking if regulator is valid before reading NPCM ADC regulator voltage to avoid system crash in a case the regulator is not valid.
Signed-off-by: Tomer Maimon <tmaimon77@gmail.com> --- drivers/iio/adc/npcm_adc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/adc/npcm_adc.c b/drivers/iio/adc/npcm_adc.c index 9e25bbec9c70..193b3b81de4d 100644 --- a/drivers/iio/adc/npcm_adc.c +++ b/drivers/iio/adc/npcm_adc.c @@ -149,7 +149,7 @@ static int npcm_adc_read_raw(struct iio_dev *indio_dev, } return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: - if (info->vref) { + if (!IS_ERR(info->vref)) { vref_uv = regulator_get_voltage(info->vref); *val = vref_uv / 1000; } else { -- 2.14.1
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