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Fix use of free in walsender error handling after a sysid mismatch.

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Found via valgrind. The bug exists since the introduction of the walsender,
so backpatch to 9.0.

Andres Freund
This commit is contained in:
Heikki Linnakangas 2014-05-06 15:14:51 +03:00
parent b4eeb9d58e
commit a7a3e71c85
1 changed files with 1 additions and 0 deletions
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1
src/backend/replication/libpqwalreceiver/libpqwalreceiver.c
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@ -151,6 +151,7 @@ libpqrcv_identify_system(TimeLineID *primary_tli)
GetSystemIdentifier());
if (strcmp(primary_sysid, standby_sysid) != 0)
{
primary_sysid = pstrdup(primary_sysid);
PQclear(res);
ereport(ERROR,
(errmsg("database system identifier differs between the primary and standby"),