f2fs: report ENOENT correctly in f2fs_rename

This fixes wrong error report in f2fs_rename.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/namei.c

@@ -820,7 +820,7 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	struct f2fs_dir_entry *old_entry;
 	struct f2fs_dir_entry *new_entry;
 	bool is_old_inline = f2fs_has_inline_dentry(old_dir);
-	int err = -ENOENT;
+	int err;
 
 	if (unlikely(f2fs_cp_error(sbi)))
 		return -EIO;
@@ -844,6 +844,7 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
 			goto out;
 	}
 
+	err = -ENOENT;
 	old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page);
 	if (!old_entry) {
 		if (IS_ERR(old_page))
@@ -1009,7 +1010,7 @@ static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
 	struct f2fs_dir_entry *old_dir_entry = NULL, *new_dir_entry = NULL;
 	struct f2fs_dir_entry *old_entry, *new_entry;
 	int old_nlink = 0, new_nlink = 0;
-	int err = -ENOENT;
+	int err;
 
 	if (unlikely(f2fs_cp_error(sbi)))
 		return -EIO;
@@ -1030,6 +1031,7 @@ static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
 	if (err)
 		goto out;
 
+	err = -ENOENT;
 	old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page);
 	if (!old_entry) {
 		if (IS_ERR(old_page))