I had a look at a couple warnings, e.g. file:///home/dank/Downloads/scan-build-2012-12-18-1/report-z07lcL.html#EndPath file:///home/dank/Downloads/scan-build-2012-12-18-1/report-9D2p5I.html#EndPath
They're hard to follow, but mostly look like garbage :-( Too bad there's no web interface for marking them as checked.
This one's real, but only affects a trace, and only if send fails:
file:///home/dank/Downloads/scan-build-2012-12-18-1/report-RBGMAQ.html#EndPath