ocxl: fix pci device refcount leak when calling getfunction0()
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 v5.15.86 by commit 37a13b274e4513c757e50c002ddcbf4bc89adbb2, it was introduced in version v5.9 by commit 87db7579ebd5ded337056eb765542eb2608f16e3. For more details please see the references link.