317 	unsigned char *tx_buf;  member
839 	if (!info->tx_buf || (count > info->max_frame_size))  in write()
849 		if (!tx_load(info, info->tx_buf, info->tx_count))  in write()
872 	if (!info->tx_buf)  in put_char()
876 		info->tx_buf[info->tx_count++] = ch;  in put_char()
964 	    tty->hw_stopped || !info->tx_buf)  in flush_chars()
970 	if (info->tx_count && tx_load(info, info->tx_buf, info->tx_count))  in flush_chars()
1020 	if (info->tx_count && tx_load(info, info->tx_buf, info->tx_count))  in tx_release()
2437 	if (!info->tx_buf) {  in startup()
2438 		info->tx_buf = kmalloc(info->max_frame_size, GFP_KERNEL);  in startup()
2439 		if (!info->tx_buf) {  in startup()
2480 	kfree(info->tx_buf);  in shutdown()
2481 	info->tx_buf = NULL;  in shutdown()