unload(D2)

NAME
     unload - unload a loadable kernel module

SYNOPSIS
     int prefixunload(void);

DESCRIPTION
     The module unload routine handles any cleanup a loadable kernel module
     must perform before it can be dynamically unloaded from a running system.

   Return Values
     The unload routine should return 0 for success, or the appropriate error
     number.

USAGE
     This entry point is optional.

     The unload routine can perform activities such as:

          deallocate memory acquired for private data

          cancel any outstanding itimeout(D3) or bufcall(D3) requests made by
          the module

   Synchronization Constraints
     The unload routine should not sleep, and should not call any functions
     that sleep.