Re: [PATCH] USB: serial: f81232: fix division by zero on line-speed change

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@vger.kernel.org # 5.2 Cc: Ji-Ze Hong (Peter Hong) hpeter@gmail.com Signed-off-by: Johan Hovold johan@kernel.org

Reviewed-by: Greg Kroah-Hartman gregkh@linuxfoundation.org