ACPI: configfs: add missing check after configfs_register_default_group()
commit 67e40054 upstream. A list_add corruption is reported by Hulk Robot like this: ============== list_add corruption. Call Trace: link_obj+0xc0/0x1c0 link_group+0x21/0x140 configfs_register_subsystem+0xdb/0x380 acpi_configfs_init+0x25/0x1000 [acpi_configfs] do_one_initcall+0x149/0x820 do_init_module+0x1ef/0x720 load_module+0x35c8/0x4380 __do_sys_finit_module+0x10d/0x1a0 do_syscall_64+0x34/0x80 It's because of the missing check after configfs_register_default_group, where configfs_unregister_subsystem should be called once failure. Fixes: 612bd01f ("ACPI: add support for loading SSDTs via configfs") Reported-by:Hulk Robot <hulkci@huawei.com> Suggested-by:
Hanjun Guo <guohanjun@huawei.com> Signed-off-by:
Qinglang Miao <miaoqinglang@huawei.com> Cc: 4.10+ <stable@vger.kernel.org> # 4.10+ Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parent
d525c395
Please register or sign in to comment