hso serial throttled tty kref fix.

This patch is for Alan Cox as it related to the tty layer.
Hopefully the hso driver is again relatively stable with this fix.

Signed-off-by: Denis Joseph Barrow <D.Barow@option.com>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index e25a58f6ff692a4bed4a46ce5efe087798e9e549..6478bf63f2897d9444e4138991bd8f811f1ed801 100644 (file)
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -2053,8 +2053,10 @@ static int put_rxbuf_data(struct urb *urb, struct hso_serial *serial)
                        serial->curr_rx_urb_offset;
                D1("data to push to tty");
                while (write_length_remaining) {
-                       if (test_bit(TTY_THROTTLED, &tty->flags))
+                       if (test_bit(TTY_THROTTLED, &tty->flags)) {
+                               tty_kref_put(tty);
                                return -1;
+                       }
                        curr_write_len =  tty_insert_flip_string
                                (tty, urb->transfer_buffer +
                                 serial->curr_rx_urb_offset,