4 files changed, 4 insertions, 4 deletions

diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 2fa566fa6da4..d7de175d53f0 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -1103,7 +1103,7 @@ tty3215_start(struct tty_struct *tty)
         }
 }
 
-static struct tty_operations tty3215_ops = {
+static const struct tty_operations tty3215_ops = {
         .open = tty3215_open,
         .close = tty3215_close,
         .write = tty3215_write,
diff --git a/drivers/s390/char/sclp_tty.c b/drivers/s390/char/sclp_tty.c
index f6cf9023039e..6f43e04dbefd 100644
--- a/drivers/s390/char/sclp_tty.c
+++ b/drivers/s390/char/sclp_tty.c
@@ -711,7 +711,7 @@ static struct sclp_register sclp_input_event =
         .receiver_fn = sclp_tty_receiver
 };
 
-static struct tty_operations sclp_ops = {
+static const struct tty_operations sclp_ops = {
         .open = sclp_tty_open,
         .close = sclp_tty_close,
         .write = sclp_tty_write,
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
index 54fba6f17188..723bf4191bfe 100644
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -655,7 +655,7 @@ __sclp_vt220_init(int early)
         return 0;
 }
 
-static struct tty_operations sclp_vt220_ops = {
+static const struct tty_operations sclp_vt220_ops = {
         .open = sclp_vt220_open,
         .close = sclp_vt220_close,
         .write = sclp_vt220_write,
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index 06e2eeec8473..4717c3611601 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -1737,7 +1737,7 @@ tty3270_ioctl(struct tty_struct *tty, struct file *file,
         return kbd_ioctl(tp->kbd, file, cmd, arg);
 }
 
-static struct tty_operations tty3270_ops = {
+static const struct tty_operations tty3270_ops = {
         .open = tty3270_open,
         .close = tty3270_close,
         .write = tty3270_write,