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-rw-r--r--drivers/net/usb/hso.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index cb33fb4e9a80..e94a02395357 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -3106,6 +3106,8 @@ static void hso_free_interface(struct usb_interface *interface)
mutex_lock(&serial->parent->mutex);
serial->parent->usb_gone = 1;
mutex_unlock(&serial->parent->mutex);
+ cancel_work_sync(&serial_table[i]->async_put_intf);
+ cancel_work_sync(&serial_table[i]->async_get_intf);
hso_serial_tty_unregister(serial);
kref_put(&serial_table[i]->ref, hso_serial_ref_free);
set_serial_by_index(i, NULL);