From: Chao Yu <chao2.yu@samsung.com>
Date: Tue, 24 Jun 2014 06:13:13 +0000 (+0800)
Subject: f2fs: release new entry page correctly in error path of f2fs_rename
X-Git-Tag: firefly_0821_release~176^2~3650^2~3
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=dd4d961fe7d1cb1cba6e9d8d132475d4917ba864;p=firefly-linux-kernel-4.4.55.git

f2fs: release new entry page correctly in error path of f2fs_rename

This patch correct releasing code of new_page to avoid BUG_ON in error patch of
f2fs_rename.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 9138c32aa698..aa3ddb228f98 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -474,7 +474,8 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	return 0;
 
 put_out_dir:
-	f2fs_put_page(new_page, 1);
+	kunmap(new_page);
+	f2fs_put_page(new_page, 0);
 out_dir:
 	if (old_dir_entry) {
 		kunmap(old_dir_page);