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tty: change tty_write_lock()'s ndelay parameter to bool

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[ Upstream commit af81533655 ]

It's a yes-no parameter, so convert it to bool to be obvious.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230810091510.13006-6-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 66aad7d8d3 ("usb: cdc-acm: return correct error code on unsupported break")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jiri Slaby (SUSE) 2023-08-10 11:14:39 +02:00 committed by Greg Kroah-Hartman
parent 7ab8ef24fd
commit 6f98751fa4
3 changed files with 5 additions and 5 deletions
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2
drivers/tty/tty.h
View file

@ -63,7 +63,7 @@ int tty_check_change(struct tty_struct *tty);
void __stop_tty(struct tty_struct *tty);
void __start_tty(struct tty_struct *tty);
void tty_write_unlock(struct tty_struct *tty);
int tty_write_lock(struct tty_struct *tty, int ndelay);
int tty_write_lock(struct tty_struct *tty, bool ndelay);
void tty_vhangup_session(struct tty_struct *tty);
void tty_open_proc_set_tty(struct file *filp, struct tty_struct *tty);
int tty_signal_session_leader(struct tty_struct *tty, int exit_session);

6
drivers/tty/tty_io.c
View file

@ -956,7 +956,7 @@ void tty_write_unlock(struct tty_struct *tty)
wake_up_interruptible_poll(&tty->write_wait, EPOLLOUT);
}
int tty_write_lock(struct tty_struct *tty, int ndelay)
int tty_write_lock(struct tty_struct *tty, bool ndelay)
{
if (!mutex_trylock(&tty->atomic_write_lock)) {
if (ndelay)
@ -1173,7 +1173,7 @@ int tty_send_xchar(struct tty_struct *tty, char ch)
return 0;
}
if (tty_write_lock(tty, 0) < 0)
if (tty_write_lock(tty, false) < 0)
return -ERESTARTSYS;
down_read(&tty->termios_rwsem);
@ -2507,7 +2507,7 @@ static int send_break(struct tty_struct *tty, unsigned int duration)
retval = tty->ops->break_ctl(tty, duration);
else {
/* Do the work ourselves */
if (tty_write_lock(tty, 0) < 0)
if (tty_write_lock(tty, false) < 0)
return -EINTR;
retval = tty->ops->break_ctl(tty, -1);
if (retval)

2
drivers/tty/tty_ioctl.c
View file

@ -427,7 +427,7 @@ static int set_termios(struct tty_struct *tty, void __user *arg, int opt)
if (retval < 0)
return retval;
if (tty_write_lock(tty, 0) < 0)
if (tty_write_lock(tty, false) < 0)
goto retry_write_wait;
/* Racing writer? */