Martin Larsson bd1d558c9c iio: adc: imx8qxp-adc: propagate regulator_get_voltage error
If the ADC vref regulator returns an error, for example, if CONFIG_REGULATOR
is not set, the error will be used as a reference voltage.

Introduce a guard for negative return values instead of unconditionally
casting it to u32.

Acked-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Martin Larsson <martin.larsson@actia.se>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20220720153136.3502440-1-martin.larsson@actia.se
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-15 22:29:57 +01:00
..
2022-06-04 14:04:27 -07:00
2021-11-17 17:51:35 +00:00
2021-12-16 17:29:46 +00:00
2021-12-16 17:29:46 +00:00
2020-03-08 17:28:53 +00:00