While this shouldn't happen in a well-behaving system, with SCMI barebox may become dependent on the firmware to provide a non-zero rate here. Sanitize the value to avoid a division -by-zero. Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> --- drivers/serial/serial_stm32.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/serial/serial_stm32.c b/drivers/serial/serial_stm32.c index 271897f1743c..f1d4c6de9074 100644 --- a/drivers/serial/serial_stm32.c +++ b/drivers/serial/serial_stm32.c @@ -41,6 +41,8 @@ static int stm32_serial_setbaudrate(struct console_device *cdev, int baudrate) unsigned long clock_rate; clock_rate = clk_get_rate(stm32->clk); + if (!clock_rate) + return -EINVAL; int_div = DIV_ROUND_CLOSEST(clock_rate, baudrate); -- 2.30.2 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
