From 9113aae794eb25d3d74c5589b49c091727a9d78b Mon Sep 17 00:00:00 2001
From: Chao Yu <yuchao0@huawei.com>
Date: Mon, 27 Feb 2017 18:43:12 +0800
Subject: [PATCH] f2fs: fix memory leak of write_io_dummy mempool during umount

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/super.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 35e712bbccf1..da9592d88edb 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -818,7 +818,8 @@ static void f2fs_put_super(struct super_block *sb)
 	kfree(sbi->raw_super);
 
 	destroy_device_list(sbi);
-
+	if (sbi->write_io_dummy)
+		mempool_destroy(sbi->write_io_dummy);
 	destroy_percpu_info(sbi);
 	kfree(sbi);
 }