The invoked functions already return zero on success or a negative
errno code so there is no need to open code the logic in the caller.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Acked-by: NAdam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>