[pgpool-committers: 1868] pgpool: Fix possible segfault in CopyDataRaws().

[Muhammad Usama]

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
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EXCEPTION_MGR

Details
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http://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=7d1e0d79a15711076c5371ea6da3f2a27d347389
Author: Tatsuo Ishii <ishii at postgresql.org>

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