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.

RETURN
       Pointer to found or added devres.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                             DEVRES_GET(9)