idr_find9
Return pointer for given id
Usage
void * idr_find(struct idr * idp, int id);
Arguments
idp
idr handle
id
lookup key
Overview
Return the pointer given the id it has been registered with. A NULL return indicates that id is not valid or you passed NULL in idr_get_new.
This function can be called under rcu_read_lock, given that the leaf pointers lifetimes are correctly managed.