The minRPM speed maybe equal to zero. so need to check input RPM not equal to 0, otherwise cause divide-by-zero driver crash. Signed-off-by: Rex Zhu <Rex.Zhu at amd.com> --- drivers/gpu/drm/amd/powerplay/hwmgr/smu7_thermal.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_thermal.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_thermal.c index 44527755..d61a9b4 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_thermal.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_thermal.c @@ -260,6 +260,7 @@ int smu7_fan_ctrl_set_fan_speed_rpm(struct pp_hwmgr *hwmgr, uint32_t speed) if (hwmgr->thermal_controller.fanInfo.bNoFan || (hwmgr->thermal_controller.fanInfo. ucTachometerPulsesPerRevolution == 0) || + speed == 0 || (speed < hwmgr->thermal_controller.fanInfo.ulMinRPM) || (speed > hwmgr->thermal_controller.fanInfo.ulMaxRPM)) return 0; -- 1.9.1
