Add kfree(root_ops) in this case to avoid memleak of root_ops,
leaks when pci_find_bus() != 0.
Signed-off-by: Yuli Wang <wangyuli@uniontech.com>
Signed-off-by: Wentao Guan <guanwentao@uniontech.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>