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

Heikki Linnakangas <heikki.linnakangas@iki.fi>

Commit: d65ecdf4110bb352527dd2f6de31421d5b769258
Author: Heikki Linnakangas <heikki.linnakangas@iki.fi>
Date: 2014-05-06T12:17:14Z
Releases: 9.0.18
Fix use of free in walsender error handling after a sysid mismatch.

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

Andres Freund

Files