qlge: bugfix: Add missing dev_kfree_skb_any() call.

We put the skb back if we can't get mapping for it.  We don't
want unmapped buffers on our receive buffer queue.
Signed-off-by: NRon Mercer <ron.mercer@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/qlge/qlge_main.c

@@ -970,6 +970,8 @@ static void ql_update_sbq(struct ql_adapter *qdev, struct rx_ring *rx_ring)
 				if (pci_dma_mapping_error(qdev->pdev, map)) {
 					QPRINTK(qdev, IFUP, ERR, "PCI mapping failed.\n");
 					rx_ring->sbq_clean_idx = clean_idx;
+					dev_kfree_skb_any(sbq_desc->p.skb);
+					sbq_desc->p.skb = NULL;
 					return;
 				}
 				pci_unmap_addr_set(sbq_desc, mapaddr, map);