xfs: change return value check to golden image check

xfs: change return value check to golden image check

xfs/133 and xfs/138 use too much code to do "return value" check,
it's not necessary. For the code can be more readable and clear,
I change "return value" check to golden image check.

Signed-off-by: Zorro Lang <zlang@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>