Date:   Tue, 7 Mar 2023 15:57:24 +0100
From:   Petr Mladek <pmladek@suse.com>
To:     John Ogness <john.ogness@linutronix.de>
Cc:     Sergey Senozhatsky <senozhatsky@chromium.org>,
        Steven Rostedt <rostedt@goodmis.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        linux-kernel@vger.kernel.org,
        Jason Wessel <jason.wessel@windriver.com>,
        Daniel Thompson <daniel.thompson@linaro.org>,
        Douglas Anderson <dianders@chromium.org>,
        Aaron Tomlin <atomlin@redhat.com>,
        Luis Chamberlain <mcgrof@kernel.org>,
        kgdb-bugreport@lists.sourceforge.net
Subject: Re: [PATCH printk v1 01/18] kdb: do not assume write() callback
 available
Message-ID: <ZAdQ1CLMkq6CULp0@alley>
References: <20230302195618.156940-1-john.ogness@linutronix.de>
 <20230302195618.156940-2-john.ogness@linutronix.de>
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On Thu 2023-03-02 21:02:01, John Ogness wrote:
> It is allowed for consoles to provide no write() callback. For
> example ttynull does this.
> 
> Check if a write() callback is available before using it.
> 
> Signed-off-by: John Ogness <john.ogness@linutronix.de>

Reviewed-by: Petr Mladek <pmladek@suse.com>

Best Regards,
Petr