iio: adc: ad7266: Don't set error code to st->vref_uv
authorAxel Lin <axel.lin@ingics.com>
Fri, 14 Dec 2012 07:47:00 +0000 (07:47 +0000)
committerJonathan Cameron <jic23@kernel.org>
Thu, 27 Dec 2012 10:59:56 +0000 (10:59 +0000)
commit36ce0c1c3ab7ea54fa6c2b3a0803c7ab0adcefbf
tree1e9b42dfe688996db2a84319d764a6ff92bb9766
parent9541cc39a6381b76dac30c8e05078eb0a543f113
iio: adc: ad7266: Don't set error code to st->vref_uv

regulator_get_voltage() may return negative error code.
Add error checking to avoid setting error code to st->vref_uv.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
drivers/iio/adc/ad7266.c