Commit 87f22db4 authored by Ilpo Järvinen's avatar Ilpo Järvinen Committed by Greg Kroah-Hartman
Browse files

tty: Return bool from tty_termios_hw_change() 



Change tty_termios_hw_change() to return bool.

Reviewed-by: default avatarJiri Slaby <jirislaby@kernel.org>
Reviewed-by: default avatarJohan Hovold <johan@kernel.org>
Signed-off-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230117090358.4796-11-ilpo.jarvinen@linux.intel.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 968d6457

drivers/tty/tty_ioctl.c

+4 −4
Original line number Diff line number Diff line
@@ -270,13 +270,13 @@ EXPORT_SYMBOL(tty_termios_copy_hw); 
 *	between the two termios structures, or a speed change is needed.

 */



int tty_termios_hw_change(const struct ktermios *a, const struct ktermios *b)

bool tty_termios_hw_change(const struct ktermios *a, const struct ktermios *b)

{

	if (a->c_ispeed != b->c_ispeed || a->c_ospeed != b->c_ospeed)

		return 1;

		return true;

	if ((a->c_cflag ^ b->c_cflag) & ~(HUPCL | CREAD | CLOCAL))

		return 1;

	return 0;

		return true;

	return false;

}

EXPORT_SYMBOL(tty_termios_hw_change);

include/linux/tty.h

+1 −1
Original line number Diff line number Diff line
@@ -453,7 +453,7 @@ unsigned char tty_get_char_size(unsigned int cflag); 
unsigned char tty_get_frame_size(unsigned int cflag);



void tty_termios_copy_hw(struct ktermios *new, const struct ktermios *old);

int tty_termios_hw_change(const struct ktermios *a, const struct ktermios *b);

bool tty_termios_hw_change(const struct ktermios *a, const struct ktermios *b);

int tty_set_termios(struct tty_struct *tty, struct ktermios *kt);



void tty_wakeup(struct tty_struct *tty);