If ucode_loaded isn't true the function returns the 'ret' variable
without having assigned a value properly. Fix that.
Reported-by: NHaim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>