mfd: Add missing regmap_exit to free a previously allocated da9052 register map

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/da9052-spi.c b/drivers/mfd/da9052-spi.c
index cdbc7ca..76bb9ea08 100644
--- a/drivers/mfd/da9052-spi.c
+++ b/drivers/mfd/da9052-spi.c
@@ -52,10 +52,12 @@
 
 	ret = da9052_device_init(da9052, id->driver_data);
 	if (ret != 0)
-		goto err;
+		goto err_regmap;
 
 	return 0;
 
+err_regmap:
+	regmap_exit(da9052->regmap);
 err:
 	kfree(da9052);
 	return ret;
@@ -66,6 +68,7 @@
 	struct da9052 *da9052 = dev_get_drvdata(&spi->dev);
 
 	da9052_device_exit(da9052);
+	regmap_exit(da9052->regmap);
 	kfree(da9052);
 
 	return 0;