out: 
sa1100_rx_chars(struct sa1100_port *sport, struct pt_regs *regs){	struct tty_struct *tty = sport->port.info->tty;	unsigned int status, ch, flg, ignored = 0;	status = UTSR1_TO_SM(UART_GET_UTSR1(sport)) |		 UTSR0_TO_SM(UART_GET_UTSR0(sport));	while (status & UTSR1_TO_SM(UTSR1_RNE)) {		ch = UART_GET_CHAR(sport);		if (tty->flip.count >= TTY_FLIPBUF_SIZE)			goto ignore_char;		sport->port.icount.rx++;		flg = TTY_NORMAL;		/*		 * note that the error handling code is		 * out of the main execution path		 */		if (status & UTSR1_TO_SM(UTSR1_PRE | UTSR1_FRE | UTSR1_ROR))			goto handle_error;		if (uart_handle_sysrq_char(&sport->port, ch, regs))			goto ignore_char;	error_return:		tty_insert_flip_char(tty, ch, flg);	ignore_char:		status = UTSR1_TO_SM(UART_GET_UTSR1(sport)) |			 UTSR0_TO_SM(UART_GET_UTSR0(sport));	} out:	tty_flip_buffer_push(tty);	return; handle_error:	if (status & UTSR1_TO_SM(UTSR1_PRE))		sport->port.icount.parity++;	else if (status & UTSR1_TO_SM(UTSR1_FRE))		sport->port.icount.frame++;	if (status & UTSR1_TO_SM(UTSR1_ROR))		sport->port.icount.overrun++;	if (status & sport->port.ignore_status_mask) {		if (++ignored > 100)			goto out;		goto ignore_char;	}	status &= sport->port.read_status_mask;	if (status & UTSR1_TO_SM(UTSR1_PRE))		flg = TTY_PARITY;	else if (status & UTSR1_TO_SM(UTSR1_FRE))		flg = TTY_FRAME;	if (status & UTSR1_TO_SM(UTSR1_ROR)) {		/*		 * overrun does *not* affect the character		 * we read from the FIFO		 */		tty_insert_flip_char(tty, ch, flg);		ch = 0;		flg = TTY_OVERRUN;	}#ifdef SUPPORT_SYSRQ	sport->port.sysrq = 0;#endif	goto error_return;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/2a9604b863c854e5bee409157aabb35b6ce8ecd3/sa1100.c/buggy/drivers/serial/sa1100.c