DP: Fix the output type used in dp_req_recv_ptr()
Related: https://pagure.io/SSSD/sssd/issue/3307
Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>
Reviewed-by: Pavel Březina <pbrezina@redhat.com>
(cherry picked from commit 60ec0db015c354349af445e0ec63f8b8421343fe)