local_irq_restore(flags);
}
-static void rs_put_char(struct tty_struct *tty, unsigned char ch)
+static int rs_put_char(struct tty_struct *tty, unsigned char ch)
{
struct async_struct *info;
unsigned long flags;
if (!tty)
- return;
+ return 0;
info = tty->driver_data;
if (serial_paranoia_check(info, tty->name, "rs_put_char"))
- return;
+ return 0;
if (!info->xmit.buf)
- return;
+ return 0;
local_irq_save(flags);
if (CIRC_SPACE(info->xmit.head,
info->xmit.tail,
SERIAL_XMIT_SIZE) == 0) {
local_irq_restore(flags);
- return;
+ return 0;
}
info->xmit.buf[info->xmit.head++] = ch;
info->xmit.head &= SERIAL_XMIT_SIZE-1;
local_irq_restore(flags);
+ return 1;
}
static void rs_flush_chars(struct tty_struct *tty)
/*
* rs_break() --- routine which turns the break handling on or off
*/
-static void rs_break(struct tty_struct *tty, int break_state)
+static int rs_break(struct tty_struct *tty, int break_state)
{
struct async_struct * info = (struct async_struct *)tty->driver_data;
unsigned long flags;
custom.adkcon = AC_UARTBRK;
mb();
local_irq_restore(flags);
+ return 0;
}