if (info->flags & ASYNC_INITIALIZED)
wait_until_sent(tty, info->timeout);
- if (tty->driver->flush_buffer)
- tty->driver->flush_buffer(tty);
+ flush_buffer(tty);
tty_ldisc_flush(tty);
if (sanity_check(info, tty->name, "wait_until_sent"))
return;
+ lock_kernel();
+
if (!(info->flags & ASYNC_INITIALIZED))
goto exit;
}
exit:
+ unlock_kernel();
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s wait_until_sent() exit\n",
__FILE__,__LINE__, info->device_name );
if (sanity_check(info, tty->name, "write_room"))
return 0;
+ lock_kernel();
if (info->params.mode == MGSL_MODE_HDLC) {
ret = (info->tx_active) ? 0 : HDLC_MAX_FRAME_SIZE;
} else {
if (ret < 0)
ret = 0;
}
+ unlock_kernel();
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s write_room()=%d\n",
*
* Return Value: 0 if success, otherwise error code
*/
-static int ioctl(struct tty_struct *tty, struct file *file,
+static int do_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg)
{
SLMP_INFO *info = (SLMP_INFO *)tty->driver_data;
return 0;
}
+static int ioctl(struct tty_struct *tty, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ int ret;
+ lock_kernel();
+ ret = do_ioctl(tty, file, cmd, arg);
+ unlock_kernel();
+ return ret;
+}
+
/*
* /proc fs routines....
*/