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path: root/drivers/tty/tty_ldisc.c
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Diffstat (limited to 'drivers/tty/tty_ldisc.c')
-rw-r--r--drivers/tty/tty_ldisc.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index e19e13647116..5d01d32e2cf0 100644
--- a/drivers/tty/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
@@ -956,6 +956,19 @@ void tty_ldisc_init(struct tty_struct *tty)
tty_ldisc_assign(tty, ld);
}
+/**
+ * tty_ldisc_init - ldisc cleanup for new tty
+ * @tty: tty that was allocated recently
+ *
+ * The tty structure must not becompletely set up (tty_ldisc_setup) when
+ * this call is made.
+ */
+void tty_ldisc_deinit(struct tty_struct *tty)
+{
+ put_ldisc(tty->ldisc);
+ tty_ldisc_assign(tty, NULL);
+}
+
void tty_ldisc_begin(void)
{
/* Setup the default TTY line discipline. */