coverity ... new run finally

[Alexander Dorofeyev]

Dan Kegel wrote:

>> Still a lot of NULL ptr migration issues which suck
>> to fix, but well.
> 709     DEADCODE        DEVENUM_ReadPinTypes    devenum/createdevenum.c
> 717     FORWARD_NULL    DEVENUM_ReadPinTypes    devenum/createdevenum.c

NULL-dereference may be a false positive from the way memory for lpMediaType is 
allocated there. Not sure though, will look some more later; BTW, a stupid 
question - is there more details available on what and where it detects in the 
function (free of charge)? Couldn't really find it by quick look around their 
website and google, except short definition of FORWARD_NULL meaning etc.

> 713     FORWARD_NULL    TestFilter_Create       quartz/tests/filtergraph.c

I sent a patch for this.