diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
index 507fe67eaffa..815ca0786c54 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
@@ -576,7 +576,8 @@ int ti_bandgap_set_sensor_data(struct ti_bandgap *bgp, int id, void *data)
  * @bgp: pointer to bandgap instance
  * @id: sensor id
  *
- * Return: data stored by set function with sensor id on success or NULL
+ * Return: the stored sensor data, which may be %NULL, or an ERR_PTR()
+ * if @bgp or @id is invalid.
  */
 void *ti_bandgap_get_sensor_data(struct ti_bandgap *bgp, int id)
 {