memory leaks in LwGeom

[esseffe]

Valgrind detects a couple of memory leaks caused by lwgeom_geos_split.c

the attached patch seems to resolve both issues

bye Sandro

[strk]

Thank you Alessandro. Do you have a small input that triggers the leak for me to add in the testsuite ?

[esseffe]

Hi Strk, you'll find two very simple SQL statements on my second attachment (one for each mem-leak condition)

[strk]

See how you like r12094 (in trunk), it's a slightly modified version of your patch avoiding a new allocation for the collection return case.

I think this could be backported to 2.1 and 2.0. Are we in time for 2.1.1 Paul ?

[strk]

Backported to 2.1 branch with r12096 (for 2.1.1) and 2.0 branch (2.0.5) with r12097