summaryrefslogtreecommitdiff
path: root/drivers/usb/serial/ch341.c
diff options
context:
space:
mode:
authorIlpo Järvinen <ilpo.jarvinen@linux.intel.com>2022-08-16 14:57:38 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-08-30 14:22:35 +0200
commitf6d47fe5921a6d3f5a1a3d0b9a3dd34b8e295722 (patch)
tree1b8a7083e38b00f0e39ed00c8acd031c72f67866 /drivers/usb/serial/ch341.c
parentbec5b814d46c2a704c3c8148752e62a33e9fa6dc (diff)
usb: serial: Make ->set_termios() old ktermios const
There should be no reason to adjust old ktermios which is going to get discarded anyway. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20220816115739.10928-8-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/serial/ch341.c')
-rw-r--r--drivers/usb/serial/ch341.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 2798fca71261..5731d69fcf18 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -103,7 +103,7 @@ struct ch341_private {
static void ch341_set_termios(struct tty_struct *tty,
struct usb_serial_port *port,
- struct ktermios *old_termios);
+ const struct ktermios *old_termios);
static int ch341_control_out(struct usb_device *dev, u8 request,
u16 value, u16 index)
@@ -470,7 +470,8 @@ err_kill_interrupt_urb:
* tty->termios contains the new setting to be used.
*/
static void ch341_set_termios(struct tty_struct *tty,
- struct usb_serial_port *port, struct ktermios *old_termios)
+ struct usb_serial_port *port,
+ const struct ktermios *old_termios)
{
struct ch341_private *priv = usb_get_serial_port_data(port);
unsigned baud_rate;