mem leak

this is my sample xs code, which calls the C++ class to fetch details
of the person. The code works fine, i have couple of questions on
this, which would help me in identifying mem leaks with this piece of
code:

1. Should a "CLEANUP" tag be added which cleans up the array
( av_clear; av_undef;)?

2. Is the way hv is handled in the loop appropriate? Will it get
cleaned up appropriately?

 thanks.

==============================
AV *
perlWrapPers::GetDetails(name = NULL)
INPUT:
	char * name
PREINIT:
	AV *av;
	HV *hv;
	int size, i;
	pdetails_vector pv;
	int vect;
CODE:
        THIS->GetDetails(name,&pv);
	av =  (AV*)sv_2mortal((SV*)newAV());
	size = pv.size();
	for(i=0; i<size; i++) {
	        struct pdetails *pd;
		char *args;
	        hv = newHV();
	        pd = pv[i];
	        hv_store(hv, "name", 4, newSVpv(pd->name, strlen(pd->name)),
0);
	        hv_store(hv, "age", 3, newSVuv(pd->pid), 0);
	        av_push(av, newRV((SV *)hv));
	}
	for (vect = 0; vect < pv.size(); vect++)
	delete pv[vect];
	pv.clear();

        RETVAL = av;
OUTPUT:
        RETVAL
==============================