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TTY: don't allow reopen when ldisc is changing
[linux-2.6-block.git]
/
drivers
/
tty
/
tty_io.c
diff --git
a/drivers/tty/tty_io.c
b/drivers/tty/tty_io.c
index c05c5af5aa044029561e38de9683e12a26c0c0c4..878f6d667b1744aaf90be87a50da56e919413ad4 100644
(file)
--- a/
drivers/tty/tty_io.c
+++ b/
drivers/tty/tty_io.c
@@
-1310,7
+1310,8
@@
static int tty_reopen(struct tty_struct *tty)
{
struct tty_driver *driver = tty->driver;
- if (test_bit(TTY_CLOSING, &tty->flags))
+ if (test_bit(TTY_CLOSING, &tty->flags) ||
+ test_bit(TTY_LDISC_CHANGING, &tty->flags))
return -EIO;
if (driver->type == TTY_DRIVER_TYPE_PTY &&