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@linutronix.de>