From 12c8035435fa16e3f6b18049bb1d7815c00a7a58 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Mon, 5 Mar 2012 14:52:26 +0100 Subject: [PATCH] TTY: amiserial/simserial, use count from tty_port Nothing special. Just remove count from serial_state and change all users to use tty_port. Signed-off-by: Jiri Slaby Cc: Geert Uytterhoeven Cc: Tony Luck Cc: Fenghua Yu Signed-off-by: Greg Kroah-Hartman --- arch/ia64/hp/sim/simserial.c | 24 ++++++++++++------------ drivers/tty/amiserial.c | 34 +++++++++++++++++----------------- include/linux/serialP.h | 1 - 3 files changed, 29 insertions(+), 30 deletions(-) diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c index fb324b345e8..baa2b1ec00a 100644 --- a/arch/ia64/hp/sim/simserial.c +++ b/arch/ia64/hp/sim/simserial.c @@ -500,26 +500,26 @@ static void rs_close(struct tty_struct *tty, struct file * filp) return; } #ifdef SIMSERIAL_DEBUG - printk("rs_close ttys%d, count = %d\n", info->line, info->count); + printk("rs_close ttys%d, count = %d\n", info->line, info->tport.count); #endif - if ((tty->count == 1) && (info->count != 1)) { + if ((tty->count == 1) && (info->tport.count != 1)) { /* * Uh, oh. tty->count is 1, which means that the tty - * structure will be freed. info->count should always + * structure will be freed. info->tport.count should always * be one in these conditions. If it's greater than * one, we've got real problems, since it means the * serial port won't be shutdown. */ printk(KERN_ERR "rs_close: bad serial port count; tty->count is 1, " - "info->count is %d\n", info->count); - info->count = 1; + "info->tport.count is %d\n", info->tport.count); + info->tport.count = 1; } - if (--info->count < 0) { + if (--info->tport.count < 0) { printk(KERN_ERR "rs_close: bad serial port count for ttys%d: %d\n", - info->line, info->count); - info->count = 0; + info->line, info->tport.count); + info->tport.count = 0; } - if (info->count) { + if (info->tport.count) { local_irq_restore(flags); return; } @@ -567,7 +567,7 @@ static void rs_hangup(struct tty_struct *tty) return; shutdown(tty, info); - info->count = 0; + info->tport.count = 0; info->flags &= ~ASYNC_NORMAL_ACTIVE; info->tport.tty = NULL; wake_up_interruptible(&info->tport.open_wait); @@ -661,13 +661,13 @@ static int rs_open(struct tty_struct *tty, struct file * filp) int retval; unsigned long page; - info->count++; + info->tport.count++; info->tport.tty = tty; tty->driver_data = info; tty->port = &info->tport; #ifdef SIMSERIAL_DEBUG - printk("rs_open %s, count = %d\n", tty->name, info->count); + printk("rs_open %s, count = %d\n", tty->name, info->tport.count); #endif tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0; diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c index 06e3a0990c8..8ad64a0f125 100644 --- a/drivers/tty/amiserial.c +++ b/drivers/tty/amiserial.c @@ -1383,26 +1383,26 @@ static void rs_close(struct tty_struct *tty, struct file * filp) } #ifdef SERIAL_DEBUG_OPEN - printk("rs_close ttys%d, count = %d\n", state->line, state->count); + printk("rs_close ttys%d, count = %d\n", state->line, state->tport.count); #endif - if ((tty->count == 1) && (state->count != 1)) { + if ((tty->count == 1) && (state->tport.count != 1)) { /* * Uh, oh. tty->count is 1, which means that the tty - * structure will be freed. state->count should always + * structure will be freed. state->tport.count should always * be one in these conditions. If it's greater than * one, we've got real problems, since it means the * serial port won't be shutdown. */ printk("rs_close: bad serial port count; tty->count is 1, " - "state->count is %d\n", state->count); - state->count = 1; + "state->tport.count is %d\n", state->tport.count); + state->tport.count = 1; } - if (--state->count < 0) { + if (--state->tport.count < 0) { printk("rs_close: bad serial port count for ttys%d: %d\n", - state->line, state->count); - state->count = 0; + state->line, state->tport.count); + state->tport.count = 0; } - if (state->count) { + if (state->tport.count) { DBG_CNT("before DEC-2"); local_irq_restore(flags); return; @@ -1529,7 +1529,7 @@ static void rs_hangup(struct tty_struct *tty) rs_flush_buffer(tty); shutdown(tty, info); - info->count = 0; + info->tport.count = 0; info->flags &= ~ASYNC_NORMAL_ACTIVE; info->tport.tty = NULL; wake_up_interruptible(&info->tport.open_wait); @@ -1584,7 +1584,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp, /* * Block waiting for the carrier detect and the line to become * free (i.e., not in use by the callout). While we are in - * this loop, info->count is dropped by one, so that + * this loop, info->tport.count is dropped by one, so that * rs_close() knows when to free things. We restore it upon * exit, either normal or abnormal. */ @@ -1592,12 +1592,12 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp, add_wait_queue(&info->tport.open_wait, &wait); #ifdef SERIAL_DEBUG_OPEN printk("block_til_ready before block: ttys%d, count = %d\n", - info->line, info->count); + info->line, info->tport.count); #endif local_irq_save(flags); if (!tty_hung_up_p(filp)) { extra_count = 1; - info->count--; + info->tport.count--; } local_irq_restore(flags); info->tport.blocked_open++; @@ -1628,7 +1628,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp, } #ifdef SERIAL_DEBUG_OPEN printk("block_til_ready blocking: ttys%d, count = %d\n", - info->line, info->count); + info->line, info->tport.count); #endif tty_unlock(); schedule(); @@ -1637,11 +1637,11 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp, __set_current_state(TASK_RUNNING); remove_wait_queue(&info->tport.open_wait, &wait); if (extra_count) - info->count++; + info->tport.count++; info->tport.blocked_open--; #ifdef SERIAL_DEBUG_OPEN printk("block_til_ready after blocking: ttys%d, count = %d\n", - info->line, info->count); + info->line, info->tport.count); #endif if (retval) return retval; @@ -1660,7 +1660,7 @@ static int rs_open(struct tty_struct *tty, struct file * filp) struct serial_state *info = rs_table + tty->index; int retval; - info->count++; + info->tport.count++; info->tport.tty = tty; tty->driver_data = info; tty->port = &info->tport; diff --git a/include/linux/serialP.h b/include/linux/serialP.h index 997edd008b9..a6612b9c7e8 100644 --- a/include/linux/serialP.h +++ b/include/linux/serialP.h @@ -35,7 +35,6 @@ struct serial_state { int line; int xmit_fifo_size; int custom_divisor; - int count; struct async_icount icount; struct tty_port tport; -- 2.41.0