Bugfix: opencl/adl: Set iSpeedType for get-fanspeed requests, and ensure we don't change do something weird with the fan when initially setting user-defined speed flag.

Fixes crash on R9 cards. Thanks to tkg for hints on what was wrong!
RPM preferred over percent since writing RPM back is always supported (while percent is not in some cases).

adl.c

@@ -475,6 +475,7 @@ void init_adl(int nDevs)
 			ga->has_fanspeed = true;
 
 		/* Save the fanspeed values as defaults in case we reset later */
+		ga->DefFanSpeedValue.iSpeedType = ADL_DL_FANCTRL_SPEED_TYPE_RPM;
 		ADL_Overdrive5_FanSpeed_Get(ga->iAdapterIndex, 0, &ga->DefFanSpeedValue);
 		if (gpus[gpu].gpu_fan)
 			set_fanspeed(gpu, gpus[gpu].gpu_fan);
@@ -998,20 +999,21 @@ int set_fanspeed(int gpu, int iFanSpeed)
 	ga->targetfan = iFanSpeed;
 
 	lock_adl();
+	ga->lpFanSpeedValue.iSpeedType = ADL_DL_FANCTRL_SPEED_TYPE_RPM;
 	if (ADL_Overdrive5_FanSpeed_Get(ga->iAdapterIndex, 0, &ga->lpFanSpeedValue) != ADL_OK) {
 		applog(LOG_DEBUG, "GPU %d call to fanspeed get failed", gpu);
 	}
+	if (!(ga->lpFanSpeedValue.iFlags & ADL_DL_FANCTRL_FLAG_USER_DEFINED_SPEED)) {
+		/* If user defined is not already specified, set it first */
+		ga->lpFanSpeedValue.iFlags |= ADL_DL_FANCTRL_FLAG_USER_DEFINED_SPEED;
+		ADL_Overdrive5_FanSpeed_Set(ga->iAdapterIndex, 0, &ga->lpFanSpeedValue);
+	}
 	if (!(ga->lpFanSpeedInfo.iFlags & ADL_DL_FANCTRL_SUPPORTS_PERCENT_WRITE)) {
 		/* Must convert speed to an RPM */
 		iFanSpeed = ga->lpFanSpeedInfo.iMaxRPM * iFanSpeed / 100;
 		ga->lpFanSpeedValue.iSpeedType = ADL_DL_FANCTRL_SPEED_TYPE_RPM;
 	} else
 		ga->lpFanSpeedValue.iSpeedType = ADL_DL_FANCTRL_SPEED_TYPE_PERCENT;
-	if (!(ga->lpFanSpeedValue.iFlags & ADL_DL_FANCTRL_FLAG_USER_DEFINED_SPEED)) {
-		/* If user defined is not already specified, set it first */
-		ga->lpFanSpeedValue.iFlags = ADL_DL_FANCTRL_FLAG_USER_DEFINED_SPEED;
-		ADL_Overdrive5_FanSpeed_Set(ga->iAdapterIndex, 0, &ga->lpFanSpeedValue);
-	}
 	ga->lpFanSpeedValue.iFanSpeed = iFanSpeed;
 	ret = ADL_Overdrive5_FanSpeed_Set(ga->iAdapterIndex, 0, &ga->lpFanSpeedValue);
 	ga->managed = true;