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-rw-r--r--drivers/net/usb/hso.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index 031d07b105a..94a27f764e6 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -1467,7 +1467,8 @@ static void hso_std_serial_write_bulk_callback(struct urb *urb)
return;
}
hso_put_activity(serial->parent);
- tty_wakeup(serial->tty);
+ if (serial->tty)
+ tty_wakeup(serial->tty);
hso_kick_transmit(serial);
D1(" ");
@@ -1538,7 +1539,8 @@ static void ctrl_callback(struct urb *urb)
clear_bit(HSO_SERIAL_FLAG_RX_SENT, &serial->flags);
} else {
hso_put_activity(serial->parent);
- tty_wakeup(serial->tty);
+ if (serial->tty)
+ tty_wakeup(serial->tty);
/* response to a write command */
hso_kick_transmit(serial);
}