diff options
| -rw-r--r-- | drivers/usb/serial/cp210x.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index f49e859ac5ce..6d4d8b828971 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -844,7 +844,9 @@ static int cp210x_tiocmget(struct tty_struct *tty) unsigned int control; int result; - cp210x_get_config(port, CP210X_GET_MDMSTS, &control, 1); + result = cp210x_get_config(port, CP210X_GET_MDMSTS, &control, 1); + if (result) + return result; result = ((control & CONTROL_DTR) ? TIOCM_DTR : 0) |((control & CONTROL_RTS) ? TIOCM_RTS : 0) |