diff --git a/drivers/hwmon/hp-wmi-sensors.c b/drivers/hwmon/hp-wmi-sensors.c
index 03c684ba83bd..55aee16df57d 100644
--- a/drivers/hwmon/hp-wmi-sensors.c
+++ b/drivers/hwmon/hp-wmi-sensors.c
@@ -1247,7 +1247,9 @@ static int fungible_show(struct seq_file *seqf, enum hp_wmi_property prop)
 		break;
 
 	case HP_WMI_PROPERTY_CURRENT_STATE:
+		mutex_lock(&state->lock);
 		seq_printf(seqf, "%s\n", nsensor->current_state);
+		mutex_unlock(&state->lock);
 		break;
 
 	case HP_WMI_PROPERTY_UNIT_MODIFIER: