diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 8c9a30d..27ca0fc 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -724,8 +724,12 @@ static void mv88e6xxx_get_strings(struct dsa_switch *ds, int port,
 {
 	struct mv88e6xxx_chip *chip = ds->priv;
 
+	mutex_lock(&chip->reg_lock);
+
 	if (chip->info->ops->stats_get_strings)
 		chip->info->ops->stats_get_strings(chip, data);
+
+	mutex_unlock(&chip->reg_lock);
 }
 
 static int mv88e6xxx_stats_get_sset_count(struct mv88e6xxx_chip *chip,
@@ -757,11 +761,14 @@ static int mv88e6320_stats_get_sset_count(struct mv88e6xxx_chip *chip)
 static int mv88e6xxx_get_sset_count(struct dsa_switch *ds, int port)
 {
 	struct mv88e6xxx_chip *chip = ds->priv;
+	int ret = 0;
 
+	mutex_lock(&chip->reg_lock);
 	if (chip->info->ops->stats_get_sset_count)
-		return chip->info->ops->stats_get_sset_count(chip);
+		ret = chip->info->ops->stats_get_sset_count(chip);
+	mutex_unlock(&chip->reg_lock);
 
-	return 0;
+	return ret;
 }
 
 static void mv88e6xxx_stats_get_stats(struct mv88e6xxx_chip *chip, int port,