btcx_riscmem_free
btcx_riscmem_free(pci,risc);
void btcx_riscmem_free(struct pci_dev *pci,
btcx_riscmem_free(btv->c.pci, &buf->top);
btcx_riscmem_free(btv->c.pci, &buf->bottom);
btcx_riscmem_free(btv->c.pci,&btv->main);
btcx_riscmem_free(btv->c.pci, &buf->top);
btcx_riscmem_free(btv->c.pci, &buf->bottom);