diff options
Diffstat (limited to 'drivers/char/hvsi.c')
| -rw-r--r-- | drivers/char/hvsi.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/char/hvsi.c b/drivers/char/hvsi.c index 41db8060e8f..54cbb58b874 100644 --- a/drivers/char/hvsi.c +++ b/drivers/char/hvsi.c @@ -311,7 +311,8 @@ static void hvsi_recv_control(struct hvsi_struct *hp, uint8_t *packet, /* CD went away; no more connection */ pr_debug("hvsi%i: CD dropped\n", hp->index); hp->mctrl &= TIOCM_CD; - if (!(hp->tty->flags & CLOCAL)) + /* If userland hasn't done an open(2) yet, hp->tty is NULL. */ + if (hp->tty && !(hp->tty->flags & CLOCAL)) *to_hangup = hp->tty; } break; |