if(db->buf_pool_ptr != NULL)
pci_free_consistent(pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4,
db->buf_pool_ptr, db->buf_pool_dma_ptr);
if(db->buf_pool_ptr != NULL)
pci_free_consistent(pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4,
db->buf_pool_ptr, db->buf_pool_dma_ptr);