suse man page for devres_get

DEVRES_GET(9)							   Driver Basics						     DEVRES_GET(9)

NAME
       devres_get - Find devres, if non-existent, add one atomically

SYNOPSIS
       void * devres_get(struct device * dev, void * new_res, dr_match_t match, void * match_data);

ARGUMENTS
       dev
	   Device to lookup or add devres for

       new_res
	   Pointer to new initialized devres to add if not found

       match
	   Match function (optional)

       match_data
	   Data for the match function

DESCRIPTION
       Find the latest devres of dev which has the same release function as new_res and for which match return 1. If found, new_res is freed;
       otherwise, new_res is added atomically.

RETURNS
       Pointer to found or added devres.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010							     DEVRES_GET(9)