[pgpool-committers: 4798] pgpool: Fix memory leaks related to pool_extract_error_message().

[Tatsuo Ishii]

Fix memory leaks related to pool_extract_error_message().

After 3.4, the function starts to return palloc'ed memory, and the
caller should had been modified so that they pfree the memory returned
by it but actually they had not.

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=514e6fc66cce7331ad241cd60dd742a907adc61d

Modified Files
--------------
src/auth/pool_auth.c              | 15 ++++++++++++---
src/protocol/child.c              |  3 ++-
src/protocol/pool_process_query.c |  4 +++-
src/protocol/pool_proto_modules.c |  1 +
4 files changed, 18 insertions(+), 5 deletions(-)