pci_dev_put(9) centos man page | unix.com

PCI_DEV_PUT(9)							Hardware Interfaces						    PCI_DEV_PUT(9)

NAME
       pci_dev_put - release a use of the pci device structure

SYNOPSIS
       void pci_dev_put(struct pci_dev * dev);

ARGUMENTS
       dev
	   device that's been disconnected

DESCRIPTION
       Must be called when a user of a device is finished with it. When the last user of the device calls this function, the memory of the device
       is freed.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							    PCI_DEV_PUT(9)