splice: handle try_to_release_page() failure

[linux-2.6-omap-h63xx.git] / drivers / serial / mcfserial.c

diff --git a/drivers/serial/mcfserial.c b/drivers/serial/mcfserial.c
index ddd3aa50d4adef5de5e136df8fbd5fa3a8738ad8..56007cc8a9b31c24cd75390a932c4d426efec9f8 100644 (file)
--- a/drivers/serial/mcfserial.c
+++ b/drivers/serial/mcfserial.c
@@ -1,3 +1,4 @@
+#warning This driver is deprecated. Check Kconfig for details.
 /*
  * mcfserial.c -- serial driver for ColdFire internal UARTS.
  *
@@ -1072,18 +1073,6 @@ static int mcfrs_ioctl(struct tty_struct *tty, struct file * file,
                        tty_wait_until_sent(tty, 0);
                        send_break(info, arg ? arg*(HZ/10) : HZ/4);
                        return 0;
-               case TIOCGSOFTCAR:
-                       error = put_user(C_CLOCAL(tty) ? 1 : 0,
-                                   (unsigned long *) arg);
-                       if (error)
-                               return error;
-                       return 0;
-               case TIOCSSOFTCAR:
-                       get_user(arg, (unsigned long *) arg);
-                       tty->termios->c_cflag =
-                               ((tty->termios->c_cflag & ~CLOCAL) |
-                                (arg ? CLOCAL : 0));
-                       return 0;
                case TIOCGSERIAL:
                        if (access_ok(VERIFY_WRITE, (void *) arg,
                                                sizeof(struct serial_struct)))
@@ -1222,8 +1211,7 @@ static void mcfrs_close(struct tty_struct *tty, struct file * filp)
        } else
 #endif
        shutdown(info);
-       if (tty->driver->flush_buffer)
-               tty->driver->flush_buffer(tty);
+       mcfrs_flush_buffer(tty);
        tty_ldisc_flush(tty);
        
        tty->closing = 0;
@@ -1276,6 +1264,8 @@ mcfrs_wait_until_sent(struct tty_struct *tty, int timeout)
         * Note: we have to use pretty tight timings here to satisfy
         * the NIST-PCTS.
         */
+       lock_kernel();
+
        fifo_time = (MCF5272_FIFO_SIZE * HZ * 10) / info->baud;
        char_time = fifo_time / 5;
        if (char_time == 0)
@@ -1312,6 +1302,7 @@ mcfrs_wait_until_sent(struct tty_struct *tty, int timeout)
                if (timeout && time_after(jiffies, orig_jiffies + timeout))
                        break;
        }
+       unlock_kernel();
 #else
        /*
         * For the other coldfire models, assume all data has been sent
@@ -1907,7 +1898,7 @@ static struct tty_driver *mcfrs_console_device(struct console *c, int *index)
  *     This is used for console output.
  */
 
-void mcfrs_put_char(char ch)
+int mcfrs_put_char(char ch)
 {
        volatile unsigned char  *uartp;
        unsigned long           flags;
@@ -1931,7 +1922,7 @@ void mcfrs_put_char(char ch)
                mcfrs_init_console(); /* try and get it back */
        local_irq_restore(flags);
 
-       return;
+       return 1;
 }