PAM: Avoid overwriting pam_status in _lookup_by_cert_done()
In case add_pam_cert_response() failed pam_status has to be set to
PAM_AUTHINFO_UNAVAIL. Although it's done properly in the code,
pam_status was overwritten just after the if block with PAM_SUCCESS.
The original faulty code was added as part of 32474fa2f0.
Signed-off-by: Fabiano FidĂȘncio <fidencio@redhat.com>
Reviewed-by: Sumit Bose <sbose@redhat.com>