tty: serial_core: Fix serial console crash on port shutdown

The port->console flag is always false, as uart_console() is called
before the serial console has been registered.

Hence for a serial port used as the console, uart_tty_port_shutdown()
will still be called when userspace closes the port, powering it down.
This may lead to a system lock up when the serial console driver writes
to the serial port's registers.

To fix this, move the setting of port->console after the call to
uart_configure_port(), which registers the serial console.

Fixes: 761ed4a94582ab29 ("tty: serial_core: convert uart_close to use tty_port_close")
Reported-by: Niklas Söderlund <[email protected]>
Signed-off-by: Geert Uytterhoeven <[email protected]>
Acked-by: Rob Herring <[email protected]>
Tested-by: Mugunthan V N <[email protected]>
Tested-by: Niklas Söderlund <[email protected]>
[robh: rebased on tty-linus]
Signed-off-by: Rob Herring <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

0 files changed, 0 insertions, 0 deletions