watch_queue: Fix NULL dereference in error cleanup
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 v5.15.33 by commit 695c47cea02b9101e2fc2e7d36d552128592b347, it was introduced in version v5.8 by commit c73be61cede5882f9605a852414db559c0ebedfd. For more details please see the references link.