block: don't delete queue kobject before its children
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 v5.4.189 by commit 84fe3ca6e7910beb47ec13509d484f84fa2a41ad, it was introduced in version v4.16 by commit 2c2086afc2b8b974fac32cb028e73dc27bfae442. For more details please see the references link.