NAME
    UnLock -- Unlock a directory or file

SYNOPSIS
    UnLock( lock )
            D1

    void UnLock(BPTR)

FUNCTION
    The filing system lock (obtained from lock(), duplock(), or
    createdir()) is removed and deallocated.

INPUTS
    lock - BCPL pointer to a lock

NOTE
    passing zero to UnLock() is harmless

SEE ALSO
    lock(), duplock(), parentoffh(), duplockfromfh()