On Tue, Nov 29, 2022 at 03:17:49PM +0100, Johan Hovold wrote: > The driver leaves the line speed unchanged in case a requested speed is > not supported. Make sure to handle the case where the current speed is > B0 (hangup) without dividing by zero when determining the clock source. > > Fixes: 268ddb5e9b62 ("USB: serial: f81232: add high baud rate support") > Cc: stable@xxxxxxxxxxxxxxx # 5.2 > Cc: Ji-Ze Hong (Peter Hong) <hpeter@xxxxxxxxx> > Signed-off-by: Johan Hovold <johan@xxxxxxxxxx> Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>