diff options
| -rw-r--r-- | drivers/char/tty_ioctl.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/char/tty_ioctl.c b/drivers/char/tty_ioctl.c index 58597993954..f19cf9d7792 100644 --- a/drivers/char/tty_ioctl.c +++ b/drivers/char/tty_ioctl.c @@ -476,11 +476,11 @@ int n_tty_ioctl(struct tty_struct * tty, struct file * file, ld = tty_ldisc_ref(tty); switch (arg) { case TCIFLUSH: - if (ld->flush_buffer) + if (ld && ld->flush_buffer) ld->flush_buffer(tty); break; case TCIOFLUSH: - if (ld->flush_buffer) + if (ld && ld->flush_buffer) ld->flush_buffer(tty); /* fall through */ case TCOFLUSH: |