[pgpool-committers: 6972] pgpool: Fix oversight in connection_life_time fix.

[Tatsuo Ishii]

Fix oversight in connection_life_time fix.

Commit 39eb90fe199d03253b99bec38d85c40f66aa55ab did not consider the case
when node is down connection struct is NULL. As a result, segfault occurred.

Branch
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V3_7_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=659150764e4815f74920535f28b61c00cf230c17

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