Re: [PATCH v4 3/3] printk: check CON_ENABLED in have_callable_console()

From: Petr Mladek
Date: Tue Feb 16 2016 - 09:44:10 EST


On Sat 2016-02-13 03:37:12, Sergey Senozhatsky wrote:
> have_callable_console() must also test CON_ENABLED bit, not just
> CON_ANYTIME. We may have disabled CON_ANYTIME console so printk
> can wrongly assume that it's safe to call_console_drivers().
>
> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>

Makes perfect sense.

Reviewed-by: Petr Mladek <pmladek@xxxxxxxx>

Best Regards,
Petr