On Thu, Mar 30, 2017 at 03:46:30PM +0200, Johan Hovold wrote:
> Commit a65a6f14dc24 ("USB: serial: fix race between probe and open")
> fixed a race between probe and open, which could lead to crashes when a
> not yet fully initialised port was being opened.
>
> This race was later incidentally closed by commit 7e73eca6a7b2 ("TTY:
> move cdev_add to tty_register_device") which moved character-device
> registration from tty_register_driver to tty_register_device, which
> isn't called until the port has been fully set up.
>
> Remove the now redundant workaround which had the negative side effect
> of not allowing a port to be opened immediately after user space had
> been notified of a new tty device.
>
> Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
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