This is a note to let you know that I've just added the patch titled
tty: change tty_write_lock()'s ndelay parameter to bool
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
tty-change-tty_write_lock-s-ndelay-parameter-to-bool.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 4d0fe1960d42007dadf73733aacffcccd82f5a30
Author: Jiri Slaby (SUSE) <jirislaby@xxxxxxxxxx>
Date: Thu Aug 10 11:14:39 2023 +0200
tty: change tty_write_lock()'s ndelay parameter to bool
[ Upstream commit af815336556df28f800669c58ab3bdad7d786b98 ]
It's a yes-no parameter, so convert it to bool to be obvious.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230810091510.13006-6-jirislaby@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Stable-dep-of: 66aad7d8d3ec ("usb: cdc-acm: return correct error code on unsupported break")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/tty/tty.h b/drivers/tty/tty.h
index c5ee21912755..91515e1ebc8d 100644
--- a/drivers/tty/tty.h
+++ b/drivers/tty/tty.h
@@ -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);
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 8fb6c6853556..860990719d14 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -939,7 +939,7 @@ 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)
@@ -1153,7 +1153,7 @@ 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);
@@ -2475,7 +2475,7 @@ 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)
diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index ad1cf51ecd11..8767c504b95d 100644
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -506,7 +506,7 @@ 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? */
