[PATCH 2/3] memory: mtk-smi: Add module_exit and module_license

[Yong Wu <yong.wu@mediatek.com>]

The config MTK_SMI always depends on MTK_IOMMU which is built-in
currently. Thus we don't have module_exit before. This patch adds
module_exit and module_license. It is a preparing patch for supporting
MTK_SMI could been built as a module.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
---
 drivers/memory/mtk-smi.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/memory/mtk-smi.c b/drivers/memory/mtk-smi.c
index e2aebd2bfa8e..aa2a25abf04f 100644
--- a/drivers/memory/mtk-smi.c
+++ b/drivers/memory/mtk-smi.c
@@ -597,3 +597,13 @@ static int __init mtk_smi_init(void)
 	return platform_register_drivers(smidrivers, ARRAY_SIZE(smidrivers));
 }
 module_init(mtk_smi_init);
+
+static void __exit mtk_smi_exit(void)
+{
+	platform_unregister_drivers(smidrivers, ARRAY_SIZE(smidrivers));
+}
+module_exit(mtk_smi_exit);
+
+MODULE_DESCRIPTION("MediaTek SMI driver");
+MODULE_ALIAS("platform:MediaTek-SMI");
+MODULE_LICENSE("GPL v2");
-- 
2.18.0