Re: [PATCH net-next 1/3] mctp: serial: cancel tx work on ldisc close

Hi,

On 24. 11. 21, 7:38, Jeremy Kerr wrote:

On the ldisc side: is there any case where we'd get a write wakeup
during (or after) the ->close()?

there should be no invocation of ldisc after close(). If there is, it's 
a bug as this is even documented:

  * @close: [TTY] ``void ()(struct tty_struct *tty)``
  *
  *      This function is called when the line discipline is being shutdown,
  *      either because the @tty is being closed or because the @tty is 
being
  *      changed to use a new line discipline. At the point of execution no
  *      further users will enter the ldisc code for this tty.
  *
  *      Can sleep.


Should be the same also for the "during" case.

regards,
-- 
js