diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 41f872d4ba3c0e97e8eb5e33cc7203317973bb24..d21f6c93c0c2c6ec422fbc89cdee484bbcd60d6e 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -849,7 +849,9 @@ static void mv88e6xxx_get_stats(struct mv88e6xxx_chip *chip, int port,
 
 	if (chip->info->ops->serdes_get_stats) {
 		data += count;
+		mutex_lock(&chip->reg_lock);
 		chip->info->ops->serdes_get_stats(chip, port, data);
+		mutex_unlock(&chip->reg_lock);
 	}
 }