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authorPeter Eisentraut2022-07-03 18:11:05 +0000
committerPeter Eisentraut2022-07-03 18:11:05 +0000
commit5faef9d582012433db9ad05af27a77bd591508e1 (patch)
treef3ace999fcaf45d69c3eb8428d3afc4819316530 /contrib
parent02c408e21a6e78ff246ea7a1beb4669634fa9c4c (diff)
Remove redundant null pointer checks before PQclear and PQconninfoFree
These functions already had the free()-like behavior of handling null pointers as a no-op. But it wasn't documented, so add it explicitly to the documentation, too. Discussion: https://www.postgresql.org/message-id/flat/dac5d2d0-98f5-94d9-8e69-46da2413593d%40enterprisedb.com
Diffstat (limited to 'contrib')
-rw-r--r--contrib/dblink/dblink.c6
-rw-r--r--contrib/postgres_fdw/postgres_fdw.c24
2 files changed, 10 insertions, 20 deletions
diff --git a/contrib/dblink/dblink.c b/contrib/dblink/dblink.c
index a561d1d6524..e323fdd0e67 100644
--- a/contrib/dblink/dblink.c
+++ b/contrib/dblink/dblink.c
@@ -157,8 +157,7 @@ dblink_res_internalerror(PGconn *conn, PGresult *res, const char *p2)
{
char *msg = pchomp(PQerrorMessage(conn));
- if (res)
- PQclear(res);
+ PQclear(res);
elog(ERROR, "%s: %s", p2, msg);
}
@@ -2756,8 +2755,7 @@ dblink_res_error(PGconn *conn, const char *conname, PGresult *res,
* leaking all the strings too, but those are in palloc'd memory that will
* get cleaned up eventually.
*/
- if (res)
- PQclear(res);
+ PQclear(res);
/*
* Format the basic errcontext string. Below, we'll add on something
diff --git a/contrib/postgres_fdw/postgres_fdw.c b/contrib/postgres_fdw/postgres_fdw.c
index d56951153bb..955a428e3da 100644
--- a/contrib/postgres_fdw/postgres_fdw.c
+++ b/contrib/postgres_fdw/postgres_fdw.c
@@ -2790,8 +2790,7 @@ postgresEndDirectModify(ForeignScanState *node)
return;
/* Release PGresult */
- if (dmstate->result)
- PQclear(dmstate->result);
+ PQclear(dmstate->result);
/* Release remote connection */
ReleaseConnection(dmstate->conn);
@@ -3604,8 +3603,7 @@ get_remote_estimate(const char *sql, PGconn *conn,
}
PG_FINALLY();
{
- if (res)
- PQclear(res);
+ PQclear(res);
}
PG_END_TRY();
}
@@ -3853,8 +3851,7 @@ fetch_more_data(ForeignScanState *node)
}
PG_FINALLY();
{
- if (res)
- PQclear(res);
+ PQclear(res);
}
PG_END_TRY();
@@ -4338,8 +4335,7 @@ store_returning_result(PgFdwModifyState *fmstate,
}
PG_CATCH();
{
- if (res)
- PQclear(res);
+ PQclear(res);
PG_RE_THROW();
}
PG_END_TRY();
@@ -4627,8 +4623,7 @@ get_returning_data(ForeignScanState *node)
}
PG_CATCH();
{
- if (dmstate->result)
- PQclear(dmstate->result);
+ PQclear(dmstate->result);
PG_RE_THROW();
}
PG_END_TRY();
@@ -4957,8 +4952,7 @@ postgresAnalyzeForeignTable(Relation relation,
}
PG_FINALLY();
{
- if (res)
- PQclear(res);
+ PQclear(res);
}
PG_END_TRY();
@@ -5114,8 +5108,7 @@ postgresAcquireSampleRowsFunc(Relation relation, int elevel,
}
PG_CATCH();
{
- if (res)
- PQclear(res);
+ PQclear(res);
PG_RE_THROW();
}
PG_END_TRY();
@@ -5496,8 +5489,7 @@ postgresImportForeignSchema(ImportForeignSchemaStmt *stmt, Oid serverOid)
}
PG_FINALLY();
{
- if (res)
- PQclear(res);
+ PQclear(res);
}
PG_END_TRY();