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

Heikki Linnakangas <heikki.linnakangas@iki.fi>

Commit: 17b04a15806d8e8b4cc3013244f4837c02d6baf4
Author: Heikki Linnakangas <heikki.linnakangas@iki.fi>
Date: 2014-05-06T12:17:00Z
Releases: 9.2.9
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