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 v5.16.19 by commit 112a2f9b0a8457794095a0450598f150724ec456, it was introduced in version v5.8 by commit c73be61cede5882f9605a852414db559c0ebedfd. For more details please see the references link.