nvkm_therm_temp_get
int nvkm_therm_temp_get(struct nvkm_therm *);
if (!therm || !therm->attr_get || nvkm_therm_temp_get(therm) < 0)
ret = nvkm_therm_temp_get(therm);
if (nvkm_therm_temp_get(therm) >= 0)