Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...

[pandora-kernel.git] / drivers / char / amiserial.c

diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c
index feb4ac8..3d468f5 100644 (file)
--- a/drivers/char/amiserial.c
+++ b/drivers/char/amiserial.c
@@ -527,10 +527,8 @@ static void do_softint(unsigned long private_)
        if (!tty)
                return;
 
-       if (test_and_clear_bit(RS_EVENT_WRITE_WAKEUP, &info->event)) {
+       if (test_and_clear_bit(RS_EVENT_WRITE_WAKEUP, &info->event))
                tty_wakeup(tty);
-               wake_up_interruptible(&tty->write_wait);
-       }
 }
 
 /*
@@ -740,6 +738,7 @@ static void change_speed(struct async_struct *info,
        }
        /* If the quotient is zero refuse the change */
        if (!quot && old_termios) {
+               /* FIXME: Will need updating for new tty in the end */
                info->tty->termios->c_cflag &= ~CBAUD;
                info->tty->termios->c_cflag |= (old_termios->c_cflag & CBAUD);
                baud = tty_get_baud_rate(info->tty);
@@ -785,7 +784,6 @@ static void change_speed(struct async_struct *info,
        /*
         * Set up parity check flag
         */
-#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
 
        info->read_status_mask = UART_LSR_OE | UART_LSR_DR;
        if (I_INPCK(info->tty))
@@ -904,8 +902,7 @@ static int rs_write(struct tty_struct * tty, const unsigned char *buf, int count
        if (!info->xmit.buf)
                return 0;
 
-       local_save_flags(flags);
-       local_irq_disable();
+       local_irq_save(flags);
        while (1) {
                c = CIRC_SPACE_TO_END(info->xmit.head,
                                      info->xmit.tail,
@@ -968,7 +965,6 @@ static void rs_flush_buffer(struct tty_struct *tty)
        local_irq_save(flags);
        info->xmit.head = info->xmit.tail = 0;
        local_irq_restore(flags);
-       wake_up_interruptible(&tty->write_wait);
        tty_wakeup(tty);
 }
 
@@ -1371,11 +1367,6 @@ static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
        unsigned long flags;
        unsigned int cflag = tty->termios->c_cflag;
 
-       if (   (cflag == old_termios->c_cflag)
-           && (   RELEVANT_IFLAG(tty->termios->c_iflag) 
-               == RELEVANT_IFLAG(old_termios->c_iflag)))
-         return;
-
        change_speed(info, old_termios);
 
        /* Handle transition to B0 status */
@@ -1578,7 +1569,7 @@ static void rs_wait_until_sent(struct tty_struct *tty, int timeout)
                if (timeout && time_after(jiffies, orig_jiffies + timeout))
                        break;
        }
-       current->state = TASK_RUNNING;
+       __set_current_state(TASK_RUNNING);
 #ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
        printk("lsr = %d (jiff=%lu)...done\n", lsr, jiffies);
 #endif
@@ -1704,7 +1695,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 #endif
                schedule();
        }
-       current->state = TASK_RUNNING;
+       __set_current_state(TASK_RUNNING);
        remove_wait_queue(&info->open_wait, &wait);
        if (extra_count)
                state->count++;
@@ -1730,12 +1721,11 @@ static int get_async_struct(int line, struct async_struct **ret_info)
                *ret_info = sstate->info;
                return 0;
        }
-       info = kmalloc(sizeof(struct async_struct), GFP_KERNEL);
+       info = kzalloc(sizeof(struct async_struct), GFP_KERNEL);
        if (!info) {
                sstate->count--;
                return -ENOMEM;
        }
-       memset(info, 0, sizeof(struct async_struct));
 #ifdef DECLARE_WAITQUEUE
        init_waitqueue_head(&info->open_wait);
        init_waitqueue_head(&info->close_wait);