centos man page for input_free_device

INPUT_FREE_DEVICE(9)						  Input Subsystem					      INPUT_FREE_DEVICE(9)

NAME
       input_free_device - free memory occupied by input_dev structure

SYNOPSIS
       void input_free_device(struct input_dev * dev);

ARGUMENTS
       dev
	   input device to free

DESCRIPTION
       This function should only be used if input_register_device was not called yet or if it failed. Once device was registered use
       input_unregister_device and memory will be freed once last reference to the device is dropped.

       Device should be allocated by input_allocate_device.

NOTE
       If there are references to the input device then memory will not be freed until last reference is dropped.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						      INPUT_FREE_DEVICE(9)