Axel Lin cb220d16f9 regulator: Fix _regulator_get_voltage if get_voltage callback is NULL
In the case of get_voltage callback is NULL, current implementation in
_regulator_get_voltage will return -EINVAL.

Also returns proper error if ret is negative value.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2011-05-27 10:49:30 +01:00
..
2011-03-31 11:26:23 -03:00
2011-01-12 14:33:03 +00:00