diff --git a/drivers/net/qla3xxx.c b/drivers/net/qla3xxx.c
index d3f65da..5d358d3 100755
--- a/drivers/net/qla3xxx.c
+++ b/drivers/net/qla3xxx.c
@@ -2380,6 +2380,7 @@
 	}
 	
 	mac_iocb_ptr = tx_cb->queue_entry;
+	memset((void *)mac_iocb_ptr, 0, sizeof(struct ob_mac_iocb_req));
 	mac_iocb_ptr->opcode = qdev->mac_ob_opcode;
 	mac_iocb_ptr->flags = OB_MAC_IOCB_REQ_X;
 	mac_iocb_ptr->flags |= qdev->mb_bit_mask;