1 files changed, 1 insertions, 9 deletions

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 20dc2add27ba..15b36e2efa85 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -410,20 +410,12 @@ static int acm_submit_read_urbs(struct acm *acm, gfp_t mem_flags)
 
 static void acm_process_read_urb(struct acm *acm, struct urb *urb)
 {
-        struct tty_struct *tty;
-
         if (!urb->actual_length)
                 return;
 
-        tty = tty_port_tty_get(&acm->port);
-        if (!tty)
-                return;
-
         tty_insert_flip_string(&acm->port, urb->transfer_buffer,
                         urb->actual_length);
-        tty_flip_buffer_push(tty);
-
-        tty_kref_put(tty);
+        tty_flip_buffer_push(&acm->port);
 }
 
 static void acm_read_bulk_callback(struct urb *urb)