diff options
| -rw-r--r-- | drivers/tty/tty_ldisc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c index 2992319022cc..df0b58905eb7 100644 --- a/drivers/tty/tty_ldisc.c +++ b/drivers/tty/tty_ldisc.c @@ -771,6 +771,7 @@ void tty_ldisc_hangup(struct tty_struct *tty, bool reinit) int tty_ldisc_setup(struct tty_struct *tty, struct tty_struct *o_tty) { int retval = tty_ldisc_open(tty, tty->ldisc); + if (retval) return retval; @@ -829,6 +830,7 @@ EXPORT_SYMBOL_GPL(tty_ldisc_release); int tty_ldisc_init(struct tty_struct *tty) { struct tty_ldisc *ld = tty_ldisc_get(tty, N_TTY); + if (IS_ERR(ld)) return PTR_ERR(ld); tty->ldisc = ld; |