From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Jules Irenge <jbi.octave@gmail.com>
Cc: linux-kernel@vger.kernel.org, boqun.feng@gmail.com,
Jiri Slaby <jslaby@suse.com>,
"open list:SERIAL DRIVERS" <linux-serial@vger.kernel.org>
Subject: Re: [PATCH 7/7] tty: serial_core: Add missing annotation for _unlock_and_check_sysrq()
Date: Thu, 16 Apr 2020 15:58:36 +0200 [thread overview]
Message-ID: <20200416135836.GB1295013@kroah.com> (raw)
In-Reply-To: <20200331204643.11262-8-jbi.octave@gmail.com>
On Tue, Mar 31, 2020 at 09:46:43PM +0100, Jules Irenge wrote:
> Sparse reports a warning at _unlock_and_check_sysrq()
>
> warning: context imbalance in uart_unlock_and_check_sysrq()
> - unexpected unlock
>
> The root cause is the missing annotation at _unlock_and_check_sysrq()
> Add the missing __releases(&port->lock) annotation.
>
> Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
> ---
> drivers/tty/serial/serial_core.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
> index 76e506ee335c..32f93f03efce 100644
> --- a/drivers/tty/serial/serial_core.c
> +++ b/drivers/tty/serial/serial_core.c
> @@ -3121,6 +3121,7 @@ int uart_prepare_sysrq_char(struct uart_port *port, unsigned int ch)
> EXPORT_SYMBOL_GPL(uart_prepare_sysrq_char);
>
> void uart_unlock_and_check_sysrq(struct uart_port *port, unsigned long irqflags)
> + __releases(&port->lock)
> {
> int sysrq_ch;
>
> --
> 2.24.1
>
This is already in the tree, are you sure you are not working from an
older one?
greg k-h
prev parent reply other threads:[~2020-04-16 14:32 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <0/7>
2020-03-31 20:46 ` [PATCH 0/7] Lock warnings cleanup Jules Irenge
2020-03-31 20:46 ` [PATCH 1/7] fs: Add missing annotation for iput_final() Jules Irenge
2020-03-31 20:46 ` [PATCH 2/7] fsnotify: Add missing annotation for fsnotify_finish_user_wait() Jules Irenge
2020-04-01 9:24 ` Jan Kara
2020-04-03 16:15 ` Jules Irenge
2020-04-03 16:52 ` Jan Kara
2020-03-31 20:46 ` [PATCH 3/7] dax: Add missing annotation for wait_entry_unlocked() Jules Irenge
2020-04-01 10:01 ` Jan Kara
2020-04-01 16:04 ` Jules Irenge
2020-03-31 20:46 ` [PATCH 4/7] sysctl: Add missing annotation for start_unregistering() Jules Irenge
2020-04-02 16:06 ` Luis Chamberlain
2020-03-31 20:46 ` [PATCH 5/7] btrfs: Add missing annotation for btrfs_lock_cluster() Jules Irenge
2020-04-01 15:57 ` David Sterba
2020-03-31 20:46 ` [PATCH 6/7] btrfs: Add missing annotation for btrfs_tree_lock() Jules Irenge
2020-03-31 20:46 ` [PATCH 7/7] tty: serial_core: Add missing annotation for _unlock_and_check_sysrq() Jules Irenge
2020-04-16 13:58 ` Greg Kroah-Hartman [this message]
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