CVE-2025-37946 s390/pci: Fix duplicate pci_dev_put() in disable_slot() when PF has child VFs

In the Linux kernel, the following vulnerability has been resolved: s390/pci: Fix duplicate pcidevput in disableslot when PF has child VFs With commit bcb5d6c76903 "s390/pci: introduce lock to synchronize state of zpcidev's" the code to ignore power off of a PF that has child VFs was changed from...