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. November 2011 DEVRES_GET(9)