3 files changed, 3 insertions, 3 deletions

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index ca90326f2f5c..71288295df2f 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1120,7 +1120,7 @@ static struct usb_driver acm_driver = {
  * TTY driver structures.
  */
 
-static struct tty_operations acm_ops = {
+static const struct tty_operations acm_ops = {
         .open =                 acm_tty_open,
         .close =                acm_tty_close,
         .write =                acm_tty_write,
diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c
index b893e3118e1b..489a85e58bca 100644
--- a/drivers/usb/gadget/serial.c
+++ b/drivers/usb/gadget/serial.c
@@ -271,7 +271,7 @@ static unsigned int use_acm = GS_DEFAULT_USE_ACM;
 
 
 /* tty driver struct */
-static struct tty_operations gs_tty_ops = {
+static const struct tty_operations gs_tty_ops = {
         .open =                 gs_open,
         .close =                gs_close,
         .write =                gs_write,
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 0222d92842b8..8006e51c34bb 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -1015,7 +1015,7 @@ void usb_serial_disconnect(struct usb_interface *interface)
         dev_info(dev, "device disconnected\n");
 }
 
-static struct tty_operations serial_ops = {
+static const struct tty_operations serial_ops = {
         .open =                 serial_open,
         .close =                serial_close,
         .write =                serial_write,