Double free causes segfault

[pramsey]

Cliff Wright writes:

I did not isolate the exact comparison, however the core dump did indicate which line and file caused the problem. looking at the code I see a memory free was called apparently pointing at the wrong object. The same free is used a couple of lines later pointing at the correct object. The patch attached shows the fix I used. I was using version 1.3.1, however see the same bug in subversion.

[pwramsey3]

​http://postgis.googlecode.com/issues/attachment?aid=-296287623309024258&name=patcha.txt

[mcayland]

Yup, that looks entirely straightforward and sensible. I'm guessing that this is within the function LWGEOM_same (it's a little bit tricky to tell without your test query ;). Applied to SVN.

ATB,

Mark.