CVE-2022-50067 btrfs: unset reloc control if transaction commit fails in prepare_to_relocate()

In the Linux kernel, the following vulnerability has been resolved: btrfs: unset reloc control if transaction commit fails in preparetorelocate In btrfsrelocateblockgroup, the rc is allocated. Then btrfsrelocateblockgroup calls relocateblockgroup preparetorelocate setreloccontrol that assigns rc ...