btrfs: fix memory leak in __addinoderef()
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.88 by commit 005d9292b5b2e71a009f911bd85d755009b37242, it was introduced in version v5.5 by commit d3316c8233bb05e0dd855d30aac347bb8ad76ee4. For more details please see the references link.