[pgpool-committers: 1475] pgpool: Fix possible segfault in CopyDataRaws().

[Tatsuo Ishii]

Fix possible segfault in CopyDataRaws().

Coverity pointed out that if pool_get_id() returns an error,
VALID_BACKEND will access out of array.  Per Coverity report 1111413
"Memory - illegal accesses".

Branch
------
V3_3_STABLE

Details
-------
http://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=a71bc92c850347fbf122a0a4d5bbc5c4cec9b692

Modified Files
--------------
pool_proto_modules.c |    3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)