Power down device when an error occurs in order to avoid wasting
power. Move powerdown function up to be seen by the new call and
align parameters for the ltr501_write_contr() call.
Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>