[Pgpool-committers] pgpool - pgpool-II: Check MASTER_CONNECTION(p)->sp) is non 0 before

[User T-ishii]

Log Message:
-----------
Check MASTER_CONNECTION(p)->sp) is non 0 before further referring to
sp. Current implementation may interrupt in the window, after setting
p and before setting sp.

Modified Files:
--------------
    pgpool-II:
        child.c (r1.29 -> r1.30)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/child.c?r1=1.29&r2=1.30)