CVE-2025-39833 mISDN: hfcpci: Fix warning when deleting uninitialized timer

In the Linux kernel, the following vulnerability has been resolved: mISDN: hfcpci: Fix warning when deleting uninitialized timer With CONFIGDEBUGOBJECTSTIMERS unloading hfcpci module leads to the following splat: 250.215892 ODEBUG: assertinit not available active state 0 object: ffffffffc01a3dc0...