From: walter harms <wharms@bfs.de>
To: Andreas Platschek <andi.platschek@gmail.com>
Cc: gregkh@linuxfoundation.org, jslaby@suse.cz,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: Re: [PATCH] tty: replace mutex_lock() with tty_write_lock()
Date: Fri, 22 Nov 2013 08:09:15 +0000 [thread overview]
Message-ID: <528F112B.4090404@bfs.de> (raw)
In-Reply-To: <1385061132-7254-1-git-send-email-andi.platschek@gmail.com>
Am 21.11.2013 20:12, schrieb Andreas Platschek:
> Use tty_write_lock()/tty_write_unlock() consistently.
>
> This takes care of the following sparse warning:
> drivers/tty/tty_io.c:1169:17: warning: context imbalance in 'tty_write_message' - unexpected unlock
>
> Signed-off-by: Andreas Platschek <andi.platschek@gmail.com>
> ---
> drivers/tty/tty_io.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
> index 3a1a01a..13dca92 100644
> --- a/drivers/tty/tty_io.c
> +++ b/drivers/tty/tty_io.c
> @@ -1165,7 +1165,7 @@ out:
> void tty_write_message(struct tty_struct *tty, char *msg)
> {
> if (tty) {
> - mutex_lock(&tty->atomic_write_lock);
> + tty_write_lock(tty,0);
> tty_lock(tty);
> if (tty->ops->write && !test_bit(TTY_CLOSING, &tty->flags)) {
> tty_unlock(tty);
i am not an expert on this but you may need to replace that tty_unlock() with tty_write_unlock().
re,
wh
WARNING: multiple messages have this Message-ID (diff)
From: walter harms <wharms@bfs.de>
To: Andreas Platschek <andi.platschek@gmail.com>
Cc: gregkh@linuxfoundation.org, jslaby@suse.cz,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: Re: [PATCH] tty: replace mutex_lock() with tty_write_lock()
Date: Fri, 22 Nov 2013 09:09:15 +0100 [thread overview]
Message-ID: <528F112B.4090404@bfs.de> (raw)
In-Reply-To: <1385061132-7254-1-git-send-email-andi.platschek@gmail.com>
Am 21.11.2013 20:12, schrieb Andreas Platschek:
> Use tty_write_lock()/tty_write_unlock() consistently.
>
> This takes care of the following sparse warning:
> drivers/tty/tty_io.c:1169:17: warning: context imbalance in 'tty_write_message' - unexpected unlock
>
> Signed-off-by: Andreas Platschek <andi.platschek@gmail.com>
> ---
> drivers/tty/tty_io.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
> index 3a1a01a..13dca92 100644
> --- a/drivers/tty/tty_io.c
> +++ b/drivers/tty/tty_io.c
> @@ -1165,7 +1165,7 @@ out:
> void tty_write_message(struct tty_struct *tty, char *msg)
> {
> if (tty) {
> - mutex_lock(&tty->atomic_write_lock);
> + tty_write_lock(tty,0);
> tty_lock(tty);
> if (tty->ops->write && !test_bit(TTY_CLOSING, &tty->flags)) {
> tty_unlock(tty);
i am not an expert on this but you may need to replace that tty_unlock() with tty_write_unlock().
re,
wh
next prev parent reply other threads:[~2013-11-22 8:09 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-21 19:12 [PATCH] tty: replace mutex_lock() with tty_write_lock() Andreas Platschek
2013-11-21 19:12 ` Andreas Platschek
2013-11-22 8:09 ` walter harms [this message]
2013-11-22 8:09 ` walter harms
2013-11-22 8:22 ` Andreas Platschek
2013-11-22 8:22 ` Andreas Platschek
2013-11-22 8:29 ` Dan Carpenter
2013-11-22 8:29 ` Dan Carpenter
2013-11-22 8:25 ` Dan Carpenter
2013-11-22 8:25 ` Dan Carpenter
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