[xml] memory leak in __xmlGenericErrorContext, according to Valgrind

[Albert Zeyer <albert zeyer rwth-aachen de>]

Hi,

Valgrind just always gives this report:

==10130== 512 bytes in 1 blocks are definitely lost in loss record 5  
of 6
==10130== at 0x40253BA: malloc (vg_replace_malloc.c:207)
==10130== by 0x4B52357: (within
/usr/lib/opengl/nvidia/lib/libGL.so.180.51)
==10130== by 0x41A209B: __xmlGenericErrorContext (globals.c:876)
==10130== by 0x8318FB1: StripHtmlTags(stlpd_std::basic_string<char,
stlpd_std::char_traits<char>, stlpd_std::allocator<char> > const&)
(StringUtils.cpp:721)

In that StripHtmlTags function in the specific line, I am doing this  
call:

        xmlSetStructuredErrorFunc(NULL, &xmlErrorHandlerDummy);

Can somebody confirm this or make it a false alarm?

I looked a bit through the libxml2 code. There is no malloc in  
__xmlGenericErrorContext but I guess it was inlined from  
xmlNewGlobalState. So, if Valgrind is right, it means that  
xmlFreeGlobalState isn't called in all cases.

PS: Please CC me on any answer because I am not registered in the list.

Thanks a lot,
Albert