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Message-ID: <ZAdQ1CLMkq6CULp0@alley>
Date: Tue, 7 Mar 2023 15:57:24 +0100
From: Petr Mladek <pmladek@...e.com>
To: John Ogness <john.ogness@...utronix.de>
Cc: Sergey Senozhatsky <senozhatsky@...omium.org>,
Steven Rostedt <rostedt@...dmis.org>,
Thomas Gleixner <tglx@...utronix.de>,
linux-kernel@...r.kernel.org,
Jason Wessel <jason.wessel@...driver.com>,
Daniel Thompson <daniel.thompson@...aro.org>,
Douglas Anderson <dianders@...omium.org>,
Aaron Tomlin <atomlin@...hat.com>,
Luis Chamberlain <mcgrof@...nel.org>,
kgdb-bugreport@...ts.sourceforge.net
Subject: Re: [PATCH printk v1 01/18] kdb: do not assume write() callback
available
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@...utronix.de>
Reviewed-by: Petr Mladek <pmladek@...e.com>
Best Regards,
Petr
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