f2fs: fix error path of f2fs_convert_inline_page()

In error path of f2fs_convert_inline_page(), we missed to truncate newly
reserved block in .i_addrs[0] once we failed in get_node_info(), fix it.

Fixes: 7735730d ("f2fs: fix to propagate error from __get_meta_page()")
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/inline.c

@@ -131,6 +131,7 @@ int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page)
 
 	err = f2fs_get_node_info(fio.sbi, dn->nid, &ni);
 	if (err) {
+		f2fs_truncate_data_blocks_range(dn, 1);
 		f2fs_put_dnode(dn);
 		return err;
 	}