Thread: pgsql: jsonapi: fix memory leakage during OOM error recovery.

jsonapi: fix memory leakage during OOM error recovery.

Coverity pointed out that inc_lex_level() would leak memory
(not to mention corrupt the pstack data structure) if some
but not all of its three REALLOC's failed.  To fix, store
successfully-updated pointers back into the pstack struct
immediately.

Oversight in 0785d1b8b, so no need for back-patch.

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/75240f65e700d7d157be27653c70fe75108f25c1

Modified Files
--------------
src/common/jsonapi.c | 19 ++++++++++++++-----
1 file changed, 14 insertions(+), 5 deletions(-)