diff --git a/arch/xtensa/platforms/iss/console.c b/arch/xtensa/platforms/iss/console.c
index 4c559cf7da2d..e60a1f57022f 100644
--- a/arch/xtensa/platforms/iss/console.c
+++ b/arch/xtensa/platforms/iss/console.c
@@ -196,7 +196,7 @@ static const struct file_operations rs_proc_fops = {
 	.release	= single_release,
 };
 
-static struct tty_operations serial_ops = {
+static const struct tty_operations serial_ops = {
 	.open = rs_open,
 	.close = rs_close,
 	.write = rs_write,
diff --git a/drivers/char/bfin_jtag_comm.c b/drivers/char/bfin_jtag_comm.c
index 1d7c34c73b20..2628c7415ea8 100644
--- a/drivers/char/bfin_jtag_comm.c
+++ b/drivers/char/bfin_jtag_comm.c
@@ -226,7 +226,7 @@ bfin_jc_wait_until_sent(struct tty_struct *tty, int timeout)
 	}
 }
 
-static struct tty_operations bfin_jc_ops = {
+static const struct tty_operations bfin_jc_ops = {
 	.open            = bfin_jc_open,
 	.close           = bfin_jc_close,
 	.write           = bfin_jc_write,
diff --git a/drivers/char/epca.c b/drivers/char/epca.c
index dde5134713e2..17b044a71e02 100644
--- a/drivers/char/epca.c
+++ b/drivers/char/epca.c
@@ -935,7 +935,7 @@ static int info_open(struct tty_struct *tty, struct file *filp)
 	return 0;
 }
 
-static struct tty_operations info_ops = {
+static const struct tty_operations info_ops = {
 	.open = info_open,
 	.ioctl = info_ioctl,
 };
diff --git a/drivers/char/pcmcia/ipwireless/tty.c b/drivers/char/pcmcia/ipwireless/tty.c
index 674b3ab3587d..2bb7874a6899 100644
--- a/drivers/char/pcmcia/ipwireless/tty.c
+++ b/drivers/char/pcmcia/ipwireless/tty.c
@@ -603,7 +603,7 @@ void ipwireless_tty_free(struct ipw_tty *tty)
 	}
 }
 
-static struct tty_operations tty_ops = {
+static const struct tty_operations tty_ops = {
 	.open = ipw_open,
 	.close = ipw_close,
 	.hangup = ipw_hangup,