error that doesn't make sense to me

[Craig White <craigwhite@azapple.com>]

Trying to connect to openldap server - the following snippet is logged
which I think comprises my error

Jan  2 17:24:29 linuxserver slapd[3620]: send_ldap_result: conn=1608
op=2 p=3
Jan  2 17:24:29 linuxserver slapd[3620]: send_ldap_result: err=0
matched="" text=""
Jan  2 17:24:29 linuxserver slapd[3620]: send_ldap_response: msgid=3
tag=101 err=0
Jan  2 17:24:29 linuxserver slapd[3620]: connection_get(32)
Jan  2 17:24:29 linuxserver slapd[3620]: connection_get(32): got
connid=1608
Jan  2 17:24:29 linuxserver slapd[3620]: connection_read(32): checking
for input on id=1608
Jan  2 17:24:29 linuxserver slapd[3620]: ber_get_next on fd 32 failed
errno=0 (Success)
Jan  2 17:24:29 linuxserver slapd[3620]: connection_read(32): input
error=-2 id=1608, closing.
Jan  2 17:24:29 linuxserver slapd[3620]: connection_closing: readying
conn=1608 sd=32 for close
Jan  2 17:24:29 linuxserver slapd[3620]: connection_close: conn=1608
sd=32

Input error -2  Is that my error? How to interpret?

Thanks

Craig