[PATCH] Console blanking locking fix

[powerpc.git] / drivers / char / mxser.c

diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index 7a24506..d0ef1ae 100644 (file)
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -63,7 +63,6 @@
 #include <asm/system.h>
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/segment.h>
 #include <asm/bitops.h>
 #include <asm/uaccess.h>
 
@@ -1995,9 +1994,6 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
        unsigned char ch, gdl;
        int ignored = 0;
        int cnt = 0;
-       unsigned char *cp;
-       char *fp;
-       int count;
        int recv_room;
        int max = 256;
        unsigned long flags;
@@ -2011,10 +2007,6 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
                //return;
        }
 
-       cp = tty->flip.char_buf;
-       fp = tty->flip.flag_buf;
-       count = 0;
-
        // following add by Victor Yu. 09-02-2002
        if (info->IsMoxaMustChipFlag != MOXA_OTHER_UART) {
 
@@ -2041,12 +2033,10 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
                }
                while (gdl--) {
                        ch = inb(info->base + UART_RX);
-                       count++;
-                       *cp++ = ch;
-                       *fp++ = 0;
+                       tty_insert_flip_char(tty, ch, 0);
                        cnt++;
                        /*
-                          if((count>=HI_WATER) && (info->stop_rx==0)){
+                          if((cnt>=HI_WATER) && (info->stop_rx==0)){
                           mxser_stoprx(tty);
                           info->stop_rx=1;
                           break;
@@ -2061,7 +2051,7 @@ intr_old:
                if (max-- < 0)
                        break;
                /*
-                  if((count>=HI_WATER) && (info->stop_rx==0)){
+                  if((cnt>=HI_WATER) && (info->stop_rx==0)){
                   mxser_stoprx(tty);
                   info->stop_rx=1;
                   break;
@@ -2078,36 +2068,33 @@ intr_old:
                        if (++ignored > 100)
                                break;
                } else {
-                       count++;
+                       char flag = 0;
                        if (*status & UART_LSR_SPECIAL) {
                                if (*status & UART_LSR_BI) {
-                                       *fp++ = TTY_BREAK;
+                                       flag = TTY_BREAK;
 /* added by casper 1/11/2000 */
                                        info->icount.brk++;
-
 /* */
                                        if (info->flags & ASYNC_SAK)
                                                do_SAK(tty);
                                } else if (*status & UART_LSR_PE) {
-                                       *fp++ = TTY_PARITY;
+                                       flag = TTY_PARITY;
 /* added by casper 1/11/2000 */
                                        info->icount.parity++;
 /* */
                                } else if (*status & UART_LSR_FE) {
-                                       *fp++ = TTY_FRAME;
+                                       flag = TTY_FRAME;
 /* added by casper 1/11/2000 */
                                        info->icount.frame++;
 /* */
                                } else if (*status & UART_LSR_OE) {
-                                       *fp++ = TTY_OVERRUN;
+                                       flag = TTY_OVERRUN;
 /* added by casper 1/11/2000 */
                                        info->icount.overrun++;
 /* */
-                               } else
-                                       *fp++ = 0;
-                       } else
-                               *fp++ = 0;
-                       *cp++ = ch;
+                               }
+                       }
+                       tty_insert_flip_char(tty, ch, flag);
                        cnt++;
                        if (cnt >= recv_room) {
                                if (!info->ldisc_stop_rx) {
@@ -2132,13 +2119,13 @@ intr_old:
                // above add by Victor Yu. 09-02-2002
        } while (*status & UART_LSR_DR);
 
-      end_intr:                // add by Victor Yu. 09-02-2002
+end_intr:              // add by Victor Yu. 09-02-2002
 
        mxvar_log.rxcnt[info->port] += cnt;
        info->mon_data.rxcnt += cnt;
        info->mon_data.up_rxcnt += cnt;
        spin_unlock_irqrestore(&info->slock, flags);
-       
+
        tty_flip_buffer_push(tty);
 }