Replace pointer for given id
void * idr_replace(struct idr * idp, void * ptr, int id);
idp
idr handle
ptr
pointer you want associated with the id
id
lookup key
Replace the pointer registered with an id and return the old value. A -ENOENT return indicates that id was not found. A -EINVAL return indicates that id was not within valid constraints.
The caller must serialize with writers.