[PATCH] Char: mxser_new, remove unused stuff

- nobody waits on close_wait
- ASYNC_SPLIT_TERMIOS is not set by anybody, so do not test this flag
- process session and pgrp are useless information

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/char/mxser_new.c b/drivers/char/mxser_new.c
index 13b9072a772919f5098ddda5e4d6db8b0e36f448..4d4721e5c6aef3bf2f3a3c18d27ebafed9aadf1b 100644 (file)
--- a/drivers/char/mxser_new.c
+++ b/drivers/char/mxser_new.c
@@ -237,8 +237,6 @@ struct mxser_port {
        long realbaud;
        int type;               /* UART type */
        int flags;              /* defined in tty.h */
-       long session;           /* Session of opening process */
-       long pgrp;              /* pgrp of opening process */
 
        int x_char;             /* xon/xoff character */
        int IER;                /* Interrupt Enable Register */
@@ -267,14 +265,12 @@ struct mxser_port {
        int xmit_cnt;
 
        struct ktermios normal_termios;
-       struct ktermios callout_termios;
 
        struct mxser_mon mon_data;
 
        spinlock_t slock;
        struct work_struct tqueue;
        wait_queue_head_t open_wait;
-       wait_queue_head_t close_wait;
        wait_queue_head_t delta_msr_wait;
 };
 
@@ -936,17 +932,6 @@ static int mxser_open(struct tty_struct *tty, struct file *filp)
        if (retval)
                return retval;
 
-       if ((info->count == 1) && (info->flags & ASYNC_SPLIT_TERMIOS)) {
-               if (tty->driver->subtype == SERIAL_TYPE_NORMAL)
-                       *tty->termios = info->normal_termios;
-               else
-                       *tty->termios = info->callout_termios;
-               mxser_change_speed(info, NULL);
-       }
-
-       info->session = process_session(current);
-       info->pgrp = process_group(current);
-
        /* unmark here for very high baud rate (ex. 921600 bps) used */
        tty->low_latency = 1;
        return 0;
@@ -1053,8 +1038,6 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
        }
 
        info->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
-       wake_up_interruptible(&info->close_wait);
-
 }
 
 static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int count)
@@ -2420,7 +2403,6 @@ static int __devinit mxser_initbrd(struct mxser_board *brd,
                INIT_WORK(&info->tqueue, mxser_do_softint);
                info->normal_termios = mxvar_sdriver->init_termios;
                init_waitqueue_head(&info->open_wait);
-               init_waitqueue_head(&info->close_wait);
                init_waitqueue_head(&info->delta_msr_wait);
                memset(&info->mon_data, 0, sizeof(struct mxser_mon));
                info->err_shadow = 0;