[poppler] [PATCH] Poppler Crash Fix: Do not call FT_Done_Freetype in CairoOutputDev

[Adrian Johnson]

Michael Vrable wrote:
> I came across a rather interesting crash in Evince recently, which I 
> think was due to FT_Done_FreeType being called in CairoOutputDev before 
> all font faces loaded by that instance of FreeType were done being used 
> by Cairo.  The bug was non-deterministic, but usually showed up as a 
> segmentation fault after reloading a document in Evince some number of 
> times (sometimes one reload, sometimes many were needed).

There are a number of Ubuntu bugs reporting poppler crashes in 
FT_Done_Face including this one which is easily reproducible

https://bugs.launchpad.net/ubuntu/+source/evince/+bug/242865

I tested your patch and it works for me.