In the Linux kernel, the following vulnerability has been resolved:
PCI: Fix reference leak in pci_register_host_bridge()
If device_register() fails, call put_device() to give up the reference to avoid a memory leak, per the comment at device_register().
Found by code review.
[bhelgaas: squash Dan Carpenters double free fix from https://lore.kernel.org/r/db806a6c-a91b-4e5a-a84b-6b7e01bdac85@stanley.mountain]