fix some memory leaks

Submitted by Fabrice Bellet

Assigned to Olivier Crête @ocrete

Created attachment 132337 call-stream: fix a couple of memory leaks

These memory leaks were found when running empathy with the address sanitizer.

Patch 132337, "call-stream: fix a couple of memory leaks":
0000-call-stream-fix-a-couple-of-memory-leaks.patch

Version: git master