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-rw-r--r--drivers/tty/tty.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/tty.h b/drivers/tty/tty.h
index f310a8274df1..1c08c9b67b16 100644
--- a/drivers/tty/tty.h
+++ b/drivers/tty/tty.h
@@ -73,7 +73,7 @@ void tty_buffer_set_lock_subclass(struct tty_port *port);
bool tty_buffer_restart_work(struct tty_port *port);
bool tty_buffer_cancel_work(struct tty_port *port);
void tty_buffer_flush_work(struct tty_port *port);
-speed_t tty_termios_input_baud_rate(struct ktermios *termios);
+speed_t tty_termios_input_baud_rate(const struct ktermios *termios);
void tty_ldisc_hangup(struct tty_struct *tty, bool reset);
int tty_ldisc_reinit(struct tty_struct *tty, int disc);
long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg);